- Madison Bumgarner has thrown his last pitch of the 2022 season, as while he isn’t injured, Diamondbacks manager Torey Lovullo told MLB.com’s Steve Gilbert (Twitter links) and other reporters that the D’Backs will use younger starters in Bumgarner’s usual rotation spot. While Bumgarner avoided injury for the first time in his three Arizona seasons, there wasn’t much to love about the left-hander’s performance, either from a bottom-line (4.88 ERA in 158 2/3 innings) or Statcast perspective — Bumgarner did pitch generally well in the first half of the season before fading after the All-Star break. The Diamondbacks owe Bumgarner $37MM over the 2023-24 seasons, the two final years of the five-year, $85MM free agent deal that has thus far been a bust for the club.
Diamondbacks Rumors
D-Backs Place Ryne Nelson On 15-Day Injured List
- The Diamondbacks placed rookie starter Ryne Nelson on the 15-day injured list this afternoon, recalling southpaw Tyler Holton from Triple-A Reno in his place. The right-hander is dealing with scapula inflammation that’ll end his season a few weeks early. Manager Torey Lovullo didn’t sound especially concerned about the issue long-term, telling reporters (including Nick Piecoro of the Arizona Republic) the club was proceeding with an excess of caution with the season winding down. Lovullo indicated Nelson should be in the mix for a spot in next year’s season-opening rotation, hardly a surprise given his prospect pedigree. Baseball America’s #96 overall farmhand entering the 2022 campaign, Nelson struggled with the longball in a hitter-friendly Triple-A environment but impressed in his first three big league starts. He allowed only four runs (three earned) with 16 strikeouts and six walks in 18 1/3 innings to kick off his MLB career.
Wilmer Difo Elects Free Agency
Infielder Wilmer Difo went unclaimed on waivers after being designated for assignment and has rejected the Diamondbacks’ outright assignment to Triple-A Reno in favor of free agency, as first indicated on the transaction log at MiLB.com. As an outrighted player with more than three years of service time, he’d have been able to become a free agent at season’s end even if he accepted.
The 30-year-old Difo appeared in just three games with the D-backs, going 0-for-6 in that time. He’s spent parts of eight seasons in the Majors and logged nearly five years of MLB service time, however, hitting a combined .250/.311/.353 in 1306 big league plate appearances. Most of that time has been spent with the Nationals in a utility capacity, although Difo did make 240 plate appearances with the Pirates in 2021 and post a respectable .269/.329/.384 slash.
Difo has spent the bulk of the current season in Reno, where his offensive output largely mirrors that Pittsburgh production from one year ago (albeit in a much more hitter-friendly setting). In 306 Triple-A plate appearances, the switch-hitter has a .269/.312/.398 batting line with seven homers, 15 doubles and four steals. He’s played primarily shortstop and third base this season, but Difo also has more than 2300 professional innings at second base and has now appeared at every spot on the diamond other than catcher (though he’d probably prefer to forget the eight runs he allowed in two innings of mop-up duty with the ’21 Pirates).
Given that he cleared waivers, there may not be an immediate opportunity for Difo in the dwindling 2022 regular season. However, he grades out as a solid defender at shortstop and has plenty of defensive versatility, so he ought to find another opportunity on a minor league deal with a team hunting for infield depth this offseason.
IL Placements: Brubaker, Middleton
Catching up on some injured-list transactions around baseball…
- The Pirates placed right-hander JT Brubaker on the 15-day injured list, retroactive to September 16. Right-hander Luis Ortiz was called up to take Brubaker’s spot on the active roster. Brubaker was officially listed as sidelined due to right arm inflammation, though lat soreness was given as the reason for his early exit from Thursday’s game, when he lasted just three innings. Over 141 1/3 innings and 27 starts for the Bucs this season, Brubaker has a 4.58 ERA and some unimpressive Statcast numbers, though his SIERA is a more favorable 3.95. His ability to eat innings could put him in the conversation for a spot in Pittsburgh’s rotation next season, even if he doesn’t make it back for one more start in 2022.
- The Diamondbacks placed right-hander Keynan Middleton on the 15-day IL due to a sprained left big toe. Righty Luis Frias was called up from Triple-A in the corresponding move. The toe sprain will likely end what has been an injury-plagued season for Middleton, who missed a couple of months due to elbow inflammation and a right ankle sprain. Between the injuries and time in the minor leagues, Middleton was limited to 17 innings in 18 appearances with the D’Backs, and he posted a 5.29 ERA over that rather small sample size. Now in his sixth MLB season, Middleton has yet to regain the early promise of his first two seasons with the Angels, before Tommy John surgery sidelined him in 2018. He inked a minors deal with the D’Backs last winter and probably seems likely to be back on the open market this offseason in search of another non-guaranteed deal.
Diamondbacks To Promote Drey Jameson
The Diamondbacks will promote pitching prospect Drey Jameson before tomorrow’s game against the Padres, reports Nick Piecoro of the Arizona Republic. They’ll need to formally select his contract to do so, but the club already has a 40-man roster vacancy after designating Wilmer Difo for assignment this week.
It’s the first MLB call for Jameson, who has been one of the organization’s more interesting pitching prospects the past few years. A supplemental first-round pick (34th overall) out of Ball State in 2019, Jameson signed for $1.4MM. Credited with a mid-upper 90’s fastball and a promising combination of secondary offerings, the right-hander looked like a potential impact arm if he could develop more consistent control. Jameson didn’t get much of an opportunity until last year, with the 2020 minor league season wiped out by the pandemic. He posted excellent strikeout numbers with solid walk rates between High-A and Double-A last year, solidifying his status as one of the better arms in the system.
FanGraphs and Keith Law of the Athletic each slotted Jameson at the back half of their Top 100 overall prospects entering the season. Baseball America and Kiley McDaniel of ESPN each had him just outside the Top 100 but placed him among the ten most talented players in a strong Arizona system. Jameson dominated through four starts at Double-A to start the year, but he’s struggled to acclimate to the minors top level.
Since being promoted to Triple-A Reno at the beginning of May, the 25-year-old has made 22 appearances (21 starts). He’s surrendered a 6.95 ERA across 114 innings, striking out a personal-low 21.2% of opponents. Jameson’s 8.2% walk rate is manageable, but he’s allowed 1.66 home runs per nine innings and been plagued by a .351 batting average on balls in play. Reno is one of the more hitter-friendly environments in affiliated ball, which has certainly been a factor, but BA’s scouting report on Jameson also notes that hitters are able to identify the ball early in his delivery, causing his fastball to play below its velocity.
That’s something Jameson and pitching coach Brent Strom will work on, but it’s also easy to see the appeal with the 6’0″ hurler. Prospect evaluators suggest his slider is a plus-plus offering (a 70 on the 20-80 scale) at its best, and Jameson also shows an average or better changeup and curveball. Adding him to the 40-man roster at the end of the season to keep him from being selected in the Rule 5 draft was a no-brainer for the D-Backs’ front office, and they’ll take the season’s final few weeks to get an early look as Jameson tries to carve out a role on the 2023 staff.
Arizona is likely to see Zach Davies hit free agency this winter, thinning out their rotation depth. Zac Gallen has cemented himself as a top-of-the-rotation arm, and Merrill Kelly is amidst the best season of his career. Madison Bumgarner has been a fixture in the starting staff since signing an $85MM free agent deal heading into 2020, but his ERA is again approaching 5.00. The veteran may not be in imminent danger of losing his rotation spot, but Arizona has begun to introduce some of their younger starting pitching options at the big league level. Jameson joins Tommy Henry and Ryne Nelson as prospects to make their MLB debuts this season. Henry has struggled but Nelson (who ironically also broke in against the Padres a couple weeks back) hasn’t allowed a run with a 13:2 strikeout-to-walk ratio through his first two starts.
The D-Backs’ Deadline Patience Paid Off
The Diamondbacks have had a decent second half. Despite dropping five of their last six games, they carry a 26-23 record with a +31 run differential since the All-Star Break. It’s not enough to get them near the playoff picture, but they’ve shown some signs of life heading into the offseason.
An otherworldly stretch from ace Zac Gallen has played a key role in the team’s solid run, but they also rank fourth in the majors in runs scored in the second half. Young outfielders Daulton Varsho, Jake McCarthy and (in a more limited look) Corbin Carroll have been excellent, and they’ve gotten the continuation of what seems to be a late-career breakout season from first baseman Christian Walker.
Walker has popped 10 home runs and owns a .286/.348/.497 line since the All-Star Break, building off what was an already solid first half. While he only hit .204 through the year’s first few months, he connected on 22 longballs and walked at a robust 13.5% clip. His walks have come down lately, but he’s also trimmed his strikeouts and is now seeing much better results on balls in play. For the year, Walker owns a .235/.329/.474 line that’s a ways better than the .243/.312/.396 league average showing.
A former fourth-round pick of the Orioles, Walker developed into a fairly well-regarded prospect. He never got an extended look in Baltimore, and he eventually made his way around the waiver wire in Spring Training 2017. The South Carolina product wound up with the Diamondbacks after a nomadic few weeks, with Arizona finally succeeding in running him through outright waivers. After a year spent mostly in the minors, Walker made it back to the big leagues. He lost most of 2018 to injury but has played the past four seasons as the Snakes’ primary first baseman.
For much of that tenure, Walker has been a slightly above-average hitter. He connected on 29 longballs in 2019, but that came in the most homer-happy season in league history. His overall .259/.348/.476 line that year translated to a 111 wRC+ that indicates he was 11 points better than league average — solid, but not eye-popping production for a first baseman. Walker had similar results in the abbreviated 2020 season before stumbling to a subpar .244/.315/.382 showing through 445 plate appearances last year.
With rookie Seth Beer on the doorstep of the majors as a first base/DH option, it was fair to wonder whether the Diamondbacks would keep Walker around. Arizona’s front office maintained enough faith he’d right the ship to sign him to a $2.6MM arbitration contract, and he was back in the lineup as Torey Lovullo’s Opening Day first baseman. It was probably the 31-year-old’s last chance at everyday playing time, and he’s responded with the best season of his career.
Not only are Walker’s results better than ever when one accounts for the depressed offensive environment this year — his 121 wRC+ is a career high — he’s made some strides from a process perspective. He’s clearly set out to be more selective, swinging at only 43.7% of the pitches he’s seen after going after more than 48% of offerings in each of the past three seasons. That increased patience means bypassing some hittable pitches, of course, and Walker’s taking more called strikes than he ever has. Yet he’s also chasing pitcher’s pitches far less often, and it’s hard to argue with the results.
Walker is making contact on a career-best 77.6% of his swings, and he seems more comfortable working his way back into at-bats. He’s not expanding the strike zone as often as he had, even when pitchers are up in the count and/or working with two strikes. Walker’s making better swing decisions, and it’s manifesting both in a personal-low 18.4% strikeout rate and in the quality of contact he’s making when he does take the bat off his shoulders. After seeing his hard contact and barrel rates drop in the past two seasons, Walker is squaring the ball up with more consistency again, as he had back in 2019.
As a first baseman, Walker’s primary contributions are going to be in the batter’s box. Yet he’s also excelled on the other side of the ball, rating as MLB’s top defensive first baseman by a wide margin in terms of both Defensive Runs Saved and Statcast’s Outs Above Average. It’s hard to imagine he won’t secure his first Gold Glove Award a few weeks from now. He’s limited to the bottom of the defensive spectrum, but Walker has been one of the game’s better players at the position on both sides of the ball.
Whether Walker can sustain this kind of production over multiple seasons remains to be seen. There’s nothing in his underlying numbers to suggest he’s lucked his way towards the top of the first base leaderboards in 2022. If anything, batted ball estimators have been more bullish than his overall results, with Walker still sporting one of the league’s lowest batting averages on balls in play (.235). Nothing in this season’s production looks like a fluke, but he’ll need to prove he can maintain this kind of discerning approach every year. One can have “earned” excellent results for a few months and still not be able to continue playing at that level for multiple seasons. Walker probably needs another year like this before he cements himself among the five to ten best first basemen in the game.
Caveats aside, he’s performed as well as the Diamondbacks could have reasonably anticipated coming into the season. It’s now a no-brainer to tender him another arbitration contract, and the club can keep him around for two more years via that process. Arizona was open to trade offers on Walker at this past summer’s deadline, and they figure to receive a few more calls this winter after he’s doubled down with an excellent second half. General manager Mike Hazen and his staff presumably wouldn’t take him off the table entirely, but it’ll be harder for teams to pry Walker away now than it was just two months ago. Not only has the team taken some steps forward heading into 2023, their first baseman has cemented himself as an integral part of the lineup.
Image courtesy of USA Today Sports.
Diamondbacks Designate Wilmer Difo For Assignment
The Diamondbacks announced they’ve designated infielder Wilmer Difo for assignment before tonight’s matchup with the Dodgers. Outfielder Jordan Luplow was recalled to take the vacated active roster spot. The move drops Arizona’s 40-man roster count to 39.
Signed to a minor league deal over the offseason, the switch-hitting Difo spent most of the season at Triple-A Reno. He struggled to a .269/.311/.398 line through 306 plate appearances there, offense that’s well below average once accounting for Reno’s extreme hitter-friendly nature. Nevertheless, he earned a call-up at the start of this month based on his defensive ability. Difo is capable of covering anywhere on the infield, and he’s rated as a solid shortstop throughout his MLB career.
The 30-year-old’s stay on the big league club proved rather brief, as he loses his roster spot after appearing in only three games. Difo tallied six plate appearances, going hitless while striking out once. That did mark his eighth straight year with some big league work, and he now owns a .250/.311/.353 line in just over 1300 plate appearances between the Nationals, Pirates and D-Backs.
Arizona will place Difo on outright or release waivers within the next few days. If he goes unclaimed, he’d have the right to refuse an outright assignment and test minor league free agency both based on having three-plus years of MLB service and having previously been outrighted in his career.
Edwin Jackson Announces Retirement
Former All-Star Edwin Jackson took to Instagram this evening to officially announce his retirement from Major League Baseball. The right-hander pitched parts of 17 seasons in the majors, getting to the highest level every year between 2003-19. Jackson suited up for 14 different MLB teams, setting the all-time record for most uniforms donned.
“19 years ago today I was blessed with an opportunity to tie up my laces and step on the field to make my debut with the Los Angeles Dodgers,” Jackson wrote. “Today I am happily hanging up my cleats and closing a 22-year baseball career.” Jackson went on to thank his wife, parents, sisters, children and the rest of his family before expressing his gratitude to various coaches, trainers and doctors who assisted him. “This game has taught me many life lessons and allowed me to evolve into the person I am today! I will forever have memories that will live within me from the game I love and dedicated my life to. Thank you baseball for an amazing life experience I will never forget,” he concluded.
A sixth-round draftee of the Dodgers out of a Georgia high school in 2001, Jackson emerged as one of the sport’s best pitching prospects not long thereafter. He broke into the big leagues exactly 19 years ago on his 20th birthday, starting three of four appearances down the stretch. He bounced on and off Los Angeles’ active roster for the next couple seasons before being traded to the then-Devil Rays over the 2005-06 offseason.
Jackson worked primarily as a reliever for his first season in Tampa Bay, but he took a full turn of starts by the 2007 campaign. That kicked off a stretch of seven consecutive seasons in which he surpassed 30 starts and 160 innings. Jackson pitched in Tampa Bay through 2008 before being dealt to the Tigers for outfielder Matt Joyce. He tossed a career-best 214 innings the next year, posting a 3.62 ERA. Jackson earned an All-Star nod with a 2.52 mark through that season’s first half.
The next offseason, his nomadic career continued. Detroit flipped Jackson to the Diamondbacks as part of a three-team blockbuster that netted Detroit Max Scherzer and sent Curtis Granderson to the Yankees. His stint in the desert was rather brief — he’d wind up traded again at that summer’s deadline — but it provided one of the more memorable moments of his career. On June 25, 2010, he tossed a no-hitter against his former team at Tropicana Field. He threw a staggering 149 pitches in the outing, striking out six but issuing eight walks. Then-manager A.J. Hinch stuck with Jackson despite his high pitch count, and he completed one of the more remarkable single-game performances by a player in recent memory.
Not long after, the last-place club dealt Jackson to the White Sox in a trade that landed Arizona Daniel Hudson. Jackson pitched well in 11 starts down the stretch, and he got off to another solid start in 2011. The White Sox fell out of contention the latter season, though, and he was on the move again. The Blue Jays acquired Jackson from the White Sox on the morning of July 27, but his stint in Toronto lasted only a few hours. Toronto promptly flipped him to the Cardinals in a deal that sent Colby Rasmus north of the border.
Jackson played in St. Louis for the second half, pitching to a 3.58 ERA through 12 starts. He made four starts in the postseason, and while his playoff numbers weren’t great, the Cardinals secured the World Series title in a dramatic series win over the Rangers. Fresh off winning a title, Jackson signed with the Nationals during his first trip through free agency. He spent the 2012 campaign in the Nats rotation, helping Washington to their first playoff appearance since moving to D.C.
The next winter, Jackson inked a four-year, $52MM pact with the Cubs. He continued to soak up innings but didn’t post especially strong numbers in Chicago. After two and a half seasons, he was released. That kicked off an even more rapid trip around the league, as Jackson suited up with the Braves, Marlins, Padres, Orioles, Nationals (again), A’s, Blue Jays and Tigers (again) over the next four years. He alternated between the rotation and the bullpen throughout that time, generally serving as a depth option.
While Jackson signed a minor league deal with the Diamondbacks in 2020, he didn’t make it back to the majors. He did appear on the U.S. Olympic team last summer and expressed a desire to get back to the big leagues, but he didn’t get another opportunity with an affiliated organization.
Altogether, Jackson pitched in 412 major league games. He tossed 1960 innings with a 4.78 ERA, striking out a bit more than 1500 batters and winning 107 games. According to Baseball Reference, Jackson banked upwards of $66MM in earnings and incredibly logged some action for almost half the league. MLBTR congratulates Jackson on his lengthy, accomplished career and wishes him all the best in retirement.
The D-backs’ Promising Outfield Gives Them Plenty Of Offseason Flexibility
Diamondbacks catcher/outfielder Daulton Varsho has impressed so much in the outfield this season that his days behind the plate could be drawing to a close, writes Nick Piecoro of the Arizona Republic. Varsho tells Piecoro that he’s even surprised himself with how well he’s taken to the outfield.
A former top-100 prospect, the 26-year-old former top prospect has drawn immaculate grades for his outfield defense in 2022, tallying 14 Defensive Runs Saved and, according to Statcast, 13 Outs Above Average and 12 Runs Above Average. Those are cumulative totals, so it’s worth noting that Varsho has also spent 175 innings behind the plate this year; had he been a full-time outfielder, those defensive marks would’ve likely been even more eye-catching.
Varsho, who says it’s a personal goal of his to win a Gold Glove, added that he’s not content with his current level of outfield play, citing a few near-catches he missed (on what would’ve been highlight-reel efforts). Varsho labeled himself a perfectionist and spoke of small, incremental gains he could still make in his defensive game — “…[I]f I can add an extra inch by not having to look at the wall and understanding what I can do to get better…” — as part of his hopeful evolution.
Of course, Varsho is far more than just a strong glove in the outfield. He’s built on a solid showing at the plate last summer and turned in a .243/.311/.457 batting line this season, swatting 23 home runs, 20 doubles and three triples while chipping in eight stolen bases (albeit in 14 attempts). It’s a solid, well-round skill set that could leave him as a fixture in center or right field, depending on how the remainder of the Diamondbacks’ young outfield pans out.
Corbin Carroll, regarded as one of the sport’s top prospects — if not the top prospect — prior to his promotion earlier this month, gives Arizona a potential high-impact talent to pair with Varsho in the long term. He’s followed up a combined .307/.425/.611 batting line in the minors this year with a .281/.324/.469 showing through his first eight big league games and now has 24 home runs and 31 steals between the minors and big leagues combined.
Add in the likes of Alek Thomas, himself a top-100 prospect prior to this season’s debut, and 25-year-old Jake McCarthy, who has surpassed all expectations with a strong debut campaign of his own, and the outfield group in Phoenix looks particularly promising. The 22-year-old Thomas has cooled after a solid start and is batting .249/.295/.373 on the season but has turned in plus defensive marks in center. McCarthy, meanwhile, is batting .288/.348/.455 with seven homers, 14 doubles, two triples and a 15-for-16 showing in stolen bases.
It’s a talented, albeit entirely left-handed, group of outfielders around which to build. That there are four players for three spots might make it tempting to continue deploying Varsho behind the dish at times, but his elite play in the outfield would be lost in that scenario. Manager Torey Lovullo told Piecoro that there are no plans for Varsho to start behind the plate for the remainder of the season, further pointing to a long-term move away from the position.
It’s a bit early to label the quartet of lefty-hitting outfielders a true “surplus.” Thomas’ offense has been below average, and it’s fair to wonder whether McCarthy can sustain production that’s been bolstered by a .347 average on balls in play — particularly when he’s making hard contact at a below-average clip. Statcast pegs his “expected” batting average and slugging percentage at .259 and .367 — both well shy of his current marks. Carroll is a top-five prospect in baseball, but he also just turned 22 in late August, so it’s not a given that he’ll immediately break out into stardom.
Still, Ken Rosenthal of The Athletic wonders about the possibility of the Diamondbacks utilizing this group of outfielders to bolster the rotation over the winter. There are plenty of teams with outfield needs who’d love to acquire a controllable long-term player to step right onto the 2023 roster. Varsho is controlled through 2026, McCarthy through 2027 and both Thomas and Carroll through at least 2028. Speculating a bit, the Marlins are known to still be looking for their center fielder of the future and have plenty of pitching to dangle in talks with the D-backs. Arizona and Miami previously lined up on a Zac Gallen-for-Jazz Chisholm swap that has benefited both clubs, though the Marlins’ front office has turned over a good bit since that time.
Trading from that quartet of outfielders would thin out the Diamondbacks’ outfield depth, quite likely in a significant way, but they do have some other options on the 40-man roster, including the right-handed-hitting Stone Garrett, who’s out to a blistering MLB debut himself after a nice showing in Triple-A. The free-agent market would also present several affordable, short-term options to plug into the outfield mix, and finding a useful complementary outfielder on the open market is quite a bit easier than finding the type of potentially impact arm that a trade of someone like Thomas could bring.
However general manager Mike Hazen and his staff choose to proceed this winter, the play of the team’s young outfielders will give them plenty of options. And with a lot clicking elsewhere on the roster — Arizona is 26-19 since the All-Star break, a .578 winning percentage — the D-backs could be a shrewd offseason move or two away from reasserting themselves in the National League West more quickly than most would anticipate.
Diamondbacks Promote Ryne Nelson
SEPTEMBER 5: The D-Backs officially announced Nelson’s promotion Monday afternoon. Reliever Luis Frias was optioned to Reno to free an active roster spot, while the club created a 40-man vacancy by recalling infielder Yonny Hernandez and putting him on the major league 60-day injured list. Hernandez, who strained his left calf while in the minors, is officially done for the season. He’ll be paid at the prorated MLB minimum rate for the remainder of the season
SEPTEMBER 4: Diamondbacks pitching prospect Ryne Nelson will make his MLB debut on Monday, manager Torey Lovullo told The Arizona Republic’s Nick Piecoro and other reporters. Nelson isn’t on the team’s 40-man roster, so at least one corresponding move will need to be made to create space for the 24-year-old right-hander.
A second-round selection in the 2019 draft, Nelson received some top-100 attention prior to the season, with The Athletic’s Keith Law rating him 74th on his list of baseball’s best prospects and Baseball America rating Nelson 96th. Law felt that Nelson was “the safe bet who offers the strongest combination of current stuff and command” among Arizona’s top pitching prospects, which was enough for Law to rate Nelson slightly ahead of other notable D’Back hurlers Drey Jameson and Brandon Pfaadt.
Nelson will be the first of that pitching trio to make the majors, though Nelson has had a rocky time in his first exposure to Triple-A baseball. Nelson has a 5.43 ERA over 136 Triple-A innings this season, with a 21.6% strikeout rate and 7.6% walk rate. That walk rate is Nelson’s best over his three pro seasons while his strikeout rate is by far his lowest, and Nelson has also allowed 25 homers. However, as Piecoro notes, these results are certainly influenced by the hitter-friendly conditions of Triple-A Reno and in the Pacific Coast League in general.
Nelson’s fastball is his signature pitch, averaging only around 93-94mph but with a lot of spin. BA gives Nelson’s fastball an impressive 70 grade on the 20-80 scale, while Pipeline is a little less bullish with a 60 grade. Pipeline’s scouting report also gives plus grades to Nelson’s curve and slider, and according to some D’Backs personnel, the slider could eventually become the right-hander’s best pitch.
It is worth noting that Nelson is still something of a work in progress as a pitcher, as he was a two-way player at Oregon and didn’t turn solely to pitching until 2019. Between that relatively late start and the canceled 2020 minor league season, BA’s scouting report feels Nelson “could still have significant growth ahead of him.” For example, he has made enough improvement with his control that he now looks like a viable starting candidate, whereas there was some feeling that Nelson would ultimately end up as a reliever.
The Diamondbacks see what Nelson can do in Monday’s start against the Padres, and possibly for the rest of September. Lovullo said the club is moving to a six-man rotation in order to rest some arms and keep everyone fresh in the final month of play, with an eye towards juggling the rotation in advance of a September 20 doubleheader against the Dodgers. After an day off on September 8, the D’Backs play 18 games in a 17-day span before their next off-day.