Here are a few notes on some of the game’s Western division clubs, including the final team for which Dunn played…

• Athletics right-handers Jarrod Parker and A.J. Griffin are doubtful for Opening Day, tweets Jon Morosi of FOX Sports. That’s not a huge shock, given that both underwent Tommy John surgery last spring, though Parker, whose surgery was on March 25, would have seemed to at least have a chance at being ready. Oakland still has plenty of pitching depth, however, with Sonny Gray, Scott Kazmir, Jesse Hahn, Jesse Chavez, Drew Pomeranz, Chris Bassitt, Sean Nolin and Kendall Graveman all in the fold. Once Griffin and Parker are healthy, Oakland will have a plethora of MLB-ready rotation options, and only Kazmir is set to depart following the 2015 campaign.
• Morosi also tweets that the Diamondbacks have received calls from the Orioles regarding their outfield depth. Baltimore is known to be looking for a left-handed hitting outfielder, and both David Peralta and Ender Inciarte would fit that description, Morosi notes. Peralta’s name has surfaced in trade talks already this offseason, as the Reds were said to be interested in him prior to acquiring Marlon Byrd. Moving Peralta would allow Arizona to shift Yasmany Tomas to the outfield rather than trying him at third base, as is the current plan, although first-year GM Dave Stewart specifically mentioned Peralta when discussing the club’s strengths shortly after his hiring.
• Also from Morosi, the D-Backs have called the Blue Jays about Dioner Navarro, but talks haven’t advanced much to this point. Morosi noted last night that Arizona is working hard to acquire a catcher, as Tuffy Gosewich is the lone player on their 40-man roster with big league experience. Navarro is known to be available after the Jays inked Russell Martin to a huge five-year deal earlier this offseason.
• The Giants tried to work out a deal to acquire Ben Zobrist from the Rays before he was dealt to Oakland, but San Francisco deemed Tampa’s asking price to be too high, tweets Nick Cafardo of the Boston Globe.
• The Mariners are one option for veteran outfielder Endy Chavez, tweets Heyman. Soon to be 37, Chavez remains on the free agent market on the heels of a season in which he batted .276/.317/.371 (99 OPS+, 97 wRC+). While Chavez has never brought much to the table in terms of offense, he’s graded out well from a defensive standpoint throughout his career (though defensive metrics have soured on him over the past two seasons).
• Yonder Alonso tells Dennis Lin of the San Diego Union-Tribune that he is 100 percent healthy after undergoing surgery to repair a torn tendon in his right wrist. Alonso says that he hasn’t been pain-free in his hands since he broke a metacarpal bone in his right hand when he was hit by a pitch on May 31, 2013. Padres GM A.J. Preller has indicated that first base is likely to be handled by some combination of Alonso, Tommy Medica and Will Middlebrooks, and Lin notes that perhaps a lower-pressure environment with more offensive threats throughout the lineup will help Alonso. Still, he notes, Alonso’s tenure with the Padres has been a disappointment to many. “I really thought he’d unleash some power,” a scout from another club tells Lin. “It’s been disappointing.”

Clearing Dunn from the roster was more a procedural mechanism than anything else at this point. The 34-year-old has indicated he is likely to retire at season’s end, and has already played out his contract. Over a short sample in Oakland, he put up a .634 OPS that dropped his season line to .219/.337/.415 over 511 plate appearances.

In De Leon, the A’s have picked up a hard-throwing reliever who has accrued minimal service time. The 27-year-old has thrown just 17 1/3 MLB innings, allowing ten earned runs and both striking out and walking ten batters. He was much better over 68 2/3 frames in the upper minors this year, however, posting a 3.01 ERA and posting 8.0 K/9 against 3.0 BB/9.

SEPTEMBER 1: Dunn kept the door slightly open for a 2015 return, telling Susan Slusser of the San Francisco Chronicle (Twitter link) that he only said he will “probably” retire following the season.  He has no intention of continuing his career to chase the 500-homer mark unless he’s on a contending team.

AUGUST 31: Adam Dunn says he will retire after the season, Bruce Levine of 670theScore.com tweets. The news comes in the wake of the slugger being traded to Oakland, and comes as no great surprise — he’s in the last season of his $56MM contract, and he’s discussed the possibility of retiring before.

He’s also 34, and his best days as a player seem to be behind him. He remains a prolific power hitter, with 20 home runs in 435 plate appearances this year, and he’s always drawn more than his share of walks. But his batting average has fallen to very low levels — he hasn’t batted above .220 since 2010. And his defense, while never good, has gotten so poor that he’s a liability anywhere other than DH, even considering his obvious offensive skills.

Nonetheless, Dunn will leave behind an impressive body of work, and his extreme homers/walks/strikeouts offensive game makes him an historically unique player. He has 460 career home runs (good for 36th all-time), including at least 38 in seven consecutive seasons from 2004 through 2010. He’s also drawn an impressive 1,311 walks in his career, fourth among active players (behind Bobby Abreu, Jason Giambi and Manny Ramirez). Of course, he’s been one of the game’s most frequent strikeout victims — five of his seasons are in the top 20 all time in strikeouts, and he ranks third all-time in whiffs, behind Reggie Jackson and Jim Thome.

Dunn made his mark on Major League pitching immediately, finishing fourth in NL Rookie of the Year voting in 2001 (despite only playing half the season in the bigs) and emerging as a poster boy for the sabermetric movement with his “Three True Outcomes” (homers, walks and strikeouts) offensive style. He then blossomed into one of the game’s most feared power hitters as an outfielder and then a first baseman with the Reds, Diamondbacks and Nationals.

Photo courtesy of USA Today Sports Images.

• Before the White Sox traded Adam Dunn to the Athletics, the Dodgers tried to acquire him to help with their bench, USA Today’s Bob Nightengale tweets. Dunn’s lack of defensive value would have been a more serious issue in the National League, but his power and patience would surely have been appealing in a pinch-hitting role, especially with expanded September rosters that might have prevented him from having to play much in the field.
• Joe Wieland will pitch for the Padres Saturday afternoon, and it will be his first start in over two years, Jeff Sanders of the San Diego Union-Tribune writes. Wieland had Tommy John surgery in 2012 and has had setbacks since then that have delayed his return. “I won’t say it’s going to be quite like my debut, but it’s going to be pretty darn close. Two-and-a-half years is a long time,” he says. Wieland got hurt less than a year after the Padres acquired him (with Robbie Erlin) from the Rangers in a deal for Mike Adams, and he’s only started five big-league games since the trade and for his career.

Here are a few more notes from around the American League:

• Newly-acquired Athletics DH Adam Dunn continued to walk back from the notion that he was set on retirement, as John Shea of the San Francisco Chronicle reports on Twitter. “Obviously, things have changed now,” he said. “I owe it to myself to put that on the back burner for at least a couple months.”
• Though the White Sox considered a call-up for recent first-rounder Carlos Rodon, the club ultimately decided against the promotion. But GM Rich Hahn tells Dan Hayes of CSNChicago.com (via Twitter) that, given “how far along [Rodon] is,” he “fully expect[s] him to come to big league camp next year and compete for a spot on the 2015 White Sox.”
• The moves to acquire soon-to-be free agents Brandon McCarthy, Chase Headley, and Stephen Drew were obviously designed to bolster the Yankees’ chances this year, but had a side benefit looking forward, writes Mark Feinsand of the New York Daily News. In the cases of the former two players, says Feinsand, the brief audition has shown both sides that a longer commitment could be beneficial. As for Drew, his poor showing since heading to New York now makes him an unlikely candidate to take over for Derek Jeter at short in 2015, according to Feinsand.

Here’s the latest from around the AL West…

• The A’s will cover $1MM of the roughly $2.3MM remaining on Adam Dunn’s 2014 salary, and ESPN’s Buster Olney tweets that Oakland’s willingness to take on this much of Dunn’s salary was part of the reason why the A’s were able to acquire the slugger.  The Giants, Dodgers and at least one other team were also reportedly talking to the White Sox about a Dunn trade.
• Astros manager Bo Porter tells Fangraphs’ David Laurila that his relationship with Houston’s front office “is what he expected coming in,” which seems to counter recent rumors of tension between Porter and GM Jeff Luhnow.  “My staff and I take all the information from our baseball ops and use it to the best of our ability. Every last component of that is needed to be successful,” Porter said.
• Also from Laurila’s piece, 37-year-old lefty Joe Beimel not only has no plans to retire, his 12-year career might only be half-over.  “I plan on pitching until I’m at least 50….I don’t see any reason I can’t do what Jamie Moyer did,” Beimel said.  “He was starting games at 49 years old and getting guys out with 80 mph. I’m not down that low yet and I figure if he could go six, seven innings, I could at least come in and get one or two guys out.”  After missing 2012 and 2013 due to Tommy John surgery, Beimel is enjoying a nice comeback year out of the Mariners’ bullpen.  The veteran southpaw has a 2.03 ERA, 5.2 K/9 and 1.92 K/BB ratio in 40 innings, and he’s held left-handed batters to only a .480 OPS.

10:45am: Dunn will join the A’s tomorrow, Susan Slusser of the San Francisco Chronicle tweets.

10:38am: The A’s have acquired Adam Dunn from the White Sox in exchange for minor league pitcher Nolan Sanburn, the team announced. Though the A’s were on his limited no-trade clause, word broke this morning that Dunn, who has never played in the postseason, was willing to waive that clause in order for a chance to win.

Dunn, 34, is hitting .220/.340/.433 with 20 homers on the season, and his numbers against right-handed pitchers are even better: .232/.357/.457 with 18 homers. The hope for the A’s is that adding some left-handed pop can help to spark an offense that has gone dormant in the month of August. Though the A’s still lead the Majors in total runs scored, they’re hitting just .248/.324/.394 this month and they’re tied with the Phillies for 20th in runs scored this month at 102. Many fans attribute those struggles to the decision to trade Yoenis Cespedes, and in Dunn, Oakland will receive a hitter whose wRC+ of 114 is similar to the 113 mark posted by Cespedes.

Those offensive struggles for the A’s have been a significant factor in the team’s fall from atop the American League West. They’ve had a particularly difficult time scoring runs against the now-division-leading Angels, as Anaheim has outscored the A’s by a score of 10 to three thus far in their four-game series. Oakland has been shut out in each of the past two contests against the Halos and has fallen to four games back in the division. They are still, however, in position to finish as one of the Wild Card winners.

John Jaso has served as Oakland’s left-handed DH quite a bit this season, but the A’s recently placed Jaso on the seven-day disabled list due to concussion-like symptoms, and they’ve been mixing and matching with Brandon Moss, Coco Crisp, Derek Norris and Gomes of late. Crisp, however, has recently re-strained his neck, which could lead to more outfield time for Moss, especially if Crisp is out for a significant amount of time.

Dunn is earning $15MM in the final season of a four-year, $56MM pact with the White Sox, meaning he is owed about $2.54MM for the month of September. Presumably, that salary commitment and Dunn’s well-documented defensive limitations allowed him to clear waivers. This marks the fourth significant trade of the summer for the A’s, who have acquired Sam Fuld, Jeff Samardzija, Jason Hammel, Jon Lester and Jonny Gomes in other deals.

In Sanburn, the Sox will acquire a right-hander that ranked 12th on MLB.com’s midseason list of top 20 Athletics prospects. The 23-year-old was Oakland’s second-round pick back in 2012 and has pitched to a 3.28 ERA with 9.2 K/9 and 3.2 BB/9 in 71 1/3 relief innings at Class-A Advanced this season. He’s finished 23 games and picked up six saves in his time at Stockton.

Sanburn has been plagued by some shoulder issues, but he also has less mileage on his arm than many pitching prospects due to the fact that he was an outfielder in college and for part of his time in college at Arkansas. Jim Callis and Jonathan Mayo of MLB.com note in their free scouting report that Sanburn touched 99 mph in college and offers a curveball with good depth as well. The MLB.com duo notes that Sanburn has a promising slider and changeup as well, but concerns over his durability have led to a bullpen role this season in Oakland.

Tom Verducci of SI.com first reported that the A’s were pursuing Dunn. Ken Rosenthal of FOX Sports tweeted that the A’s were the front-runners to land him and that Dunn would waive his no-trade clause. ESPN’s Buster Olney first tweeted that the A’s were closing in on a deal for Dunn.

Photo courtesy of USA Today Sports Images.

9:00am: The Giants are no longer a potential landing spot for Dunn, according to Olney (Twitter link).

8:45am: Rosenthal tweets that the A’s are the front-runners to acquire Dunn, who is willing to waive his no-trade clause to facilitate a trade to Oakland.

8:34am: The Giants, A’s and one other club are pursuing Dunn, Rosenthal further reports (Twitter links). Oakland is indeed on Dunn’s no-trade list, but Dunn will consider allowing a trade for a chance to win in the postseason, he adds. Meanwhile, ESPN’s Buster Olney hears that the Dodgers are still in discussion with the White Sox on Dunn (Twitter link).

8:31am: The Giants and A’s are both looking to make a late trade for White Sox slugger Adam Dunn, reports Tom Verducci of SI.com. Ken Rosenthal of FOX Sports tweets that there was a lot of chatter yesterday that Dunn could be moved in advance of the Sept. 1 deadline for postseason eligibility. Rosenthal also notes that Dunn has a limited no-trade clause, and while the teams on that list aren’t known, Oakland frequently finds itself listed on players’ no-trade clauses.

However, as Verducci notes, Dunn leads all active players in games played without a postseason appearance, and he’s also discussed the possibility of retiring after the season. With those factors in mind, it’s hard to imagine Dunn blocking a trade to a team with a good chance of providing him with the first playoff experience of his 14-year career.

Players acquired via trade after Aug. 31 are not eligible for their new team’s postseason roster, making today somewhat of a soft trade deadline (we of course have seen trades take place after Sept. 1). As such, it wouldn’t be a shock to see Dunn (and/or others) on the move, and the White Sox certainly aren’t averse to trading veterans, having just dealt Alejandro De Aza to the Orioles last night.

While there haven’t been reports on Dunn clearing revocable trade waivers, his $15MM salary and defensive limitations both make him a candidate to clear waivers. If that has happened, he’s free to be dealt to any team, and that would certainly seem to be the implication in Verducci’s article, as he notes that the Dodgers also inquired on Dunn but aren’t considered a fit. The “Big Donkey” is owed about $2.54MM in September, so Chicago GM Rick Hahn could sweeten a potential trade by offering to pay some or all of Dunn’s remaining salary.

Dunn hit his 20th homer of the season yesterday and has posted a .220/.340/.433 batting line on the season as a whole. His platoon issues have been building for years, and they’re very apparent in 2014, as he’s hitting just .154/.274/.288 with two homers against southpaws and .232/.351/.457 against righties. Dunn could be used as a bench bat for the Giants and perhaps a platoon option at DH for the A’s. Clearly, he could play a bigger role in Oakland than in San Francisco, and for what it’s worth, John Shea of the San Francisco Chronicle tweets that A’s GM Billy Beane has told him that he “loves” Dunn in the past.

• The White Sox might prefer not to trade John Danks, who they have signed to a reasonable contract through 2016. But Adam Dunn is set to become a free agent, and the team has plenty of potential replacements for Alexei Ramirez and Gordon Beckham, so Chicago could deal any of those players at the deadline.
• Since Josh Johnson won’t start more than seven games this season, the Padres have a $4MM option on him for 2015. Given Johnson’s Tommy John surgery, though, it’s unclear whether the Padres will be able to get enough out of Johnson in 2015 to make the option worthwhile.
• Nelson Cruz of the Orioles has done a good job rebuilding his value after taking a one-year offer significantly below the cost of the qualifying offer he rejected last winter, Rosenthal says. Cruz is off to a fast start, hitting .300/.391/.588 in his first 92 plate appearances with Baltimore.

• Royals infielder Christian Colon has switched agents from Scott Boras to Excel Sports, tweets Jerry Crasnick of ESPN.
• The Royals and Angels might make good trade partners, with the Angels sending second baseman Howie Kendrick to Kansas City in return for young pitching, the Los Angeles Times' Mike DiGiovanna tweets.
• Phil Hughes was surprised to receive a three-year, $24MM deal from the Twins, Mark Feinsand of the New York Daily News reports. "Obviously the season I had was a disaster," says Hughes. "Coming into this thing, I was kind of expecting to just rebuild my value with a good year next year somewhere." The Mariners and Angels were among the other teams who bid for Hughes, but the Twins' offer of three guaranteed years won out. 
• Now that the White Sox have signed Jose Dariel Abreu and re-signed Paul Konerko, there's less playing time available for Adam Dunn, writes CSNChicago.com's Dan Hayes. It appears Konerko and Dunn will platoon, with Konerko starting at designated hitter against lefties. Dunn hit .226/.327/.459 against righties last year, compared to .197/.296/.385 against lefties.

Here are some more items from around baseball tonight…

• Chris Young would like to play for the Astros but the free outfielder didn't say if he'd been contacted by the team, MLB.com's Brian McTaggart tweets.  Young, a Houston native, has drawn some level of interest from the Red Sox and Mets this winter.
• Also from McTaggart, LaTroy Hawkins said he hasn't been contacted by the Astros this offseason, though the veteran has other "irons in the fire."  The Astros are looking for bullpen help and Hawkins has a connection to Houston, having pitched for the club in 2008-09.  As many as seven teams, however, have already shown interest in Hawkins, including the Rockies and Mets.
• Dallas Braden tells Susan Slusser of the San Francisco Chronicle (Twitter link) that he intends to try out for teams when he increases his stamina.  After throwing a perfect game in 2010, Braden made just three starts in 2011 and hasn't pitched since due to a pair of shoulder surgeries.  The southpaw elected free agency from the A's following the 2012 season.
• Brian Cashman tells reporters (including The Chicago Sun-Times Gordon Wittenmyer) that he always expected Joe Girardi to return to manage the Yankees, despite the rumors that Girardi would join the Cubs.  Wittenmyer believes the Cubs' reported "back-channel communication" to try and woo Girardi "underscored an ongoing disconnect between the Cubs’ baseball and business sides of the operation."
• The qualifying offer may not be the hindrance to some free agents as it appears, Brian MacPherson of the Providence Journal argues.  Michael Bourn and Kyle Lohse were last offseason's two infamous examples of how a draft pick compensation tag could hurt a player's market, but MacPherson opines that the Baseball Prospectus PECOTA system projected Bourn and Lohse as worth the contracts they eventually signed with the Indians and Brewers, respectively.
• If the Rockies could somehow get Justin Morneau at a reasonable price, he would make an ideal platoon partner for Michael Cuddyer and Jordan Pacheco, Troy Renck of the Denver Post opines (Sulia link).
• A member of the Yankees baseball operations staff predicts Phil Hughes will sign with an NL West team, Mike Berardino of the St. Paul Pioneer Press reports (via Twitter).  The flyball-prone Hughes could be greatly helped by pitching at AT&T Park, Petco Park or Dodger Stadium, though Chase Field or Coors Field aren't good fits.  The source says Hughes is a "good fit in Minnesota," and the Twins and Royals are the only teams linked to Hughes so far this offseason.
• Though Tim Hudson is 38 and coming off a nasty broken ankle, a National League talent evaluator still picked the veteran righty as the best risk amongst free agent pitchers who are at least 33 years old, SI.com's Tom Verducci reports.  Bartolo Colon, Roy Halladay, Dan Haren and Ryan Vogelsong round out the top five.

Paul Konerko has hinted all season that 2013 could be his final season as he battles through a multitude of injuries.  The 37-year-old's age has undeniably been showing this season as he has a .244/.314/.358 slash line, his worst in any season as a full time major leaguer.  However, he's been telling friends as of late that he wants to continue playing and return to the White Sox in 2014.

Meanwhile, teammate Adam Dunn told Ken Rosenthal of FOX Sports that he could conceivably walk away from the game, which is surprising for a couple of reasons.  First and foremost, Dunn is owed $15MM next season and it's rare to see anyone walk away from that kind of cash.  Secondly, Dunn has been hitting quite well over the last couple of months and is even hitting for average.  The veteran may be frustrated with the White Sox's season overall, but he can't beat himself up for his individual performance.  For what it's worth, he seemed to walk his comments back a bit earlier today.

“Apparently everybody is retiring,” Ventura said of talk that Konerko and Dunn could call it quits, according to Dan Hayes of CSNChicago.com. “When you’re frustrated that probably comes up a lot, but I don’t see it happening. I don’t see Dunner going anywhere. I think those are just things you talk about. He’s probably at a point in his career where you can bring the subject up about when is the right time, when isn’t, but I fully expect him to be in spring training with us.”

Ultimately, how do you see things playing out for the White Sox vets?

• Tigers pitcher Jeremy Bonderman has left The Legacy Agency and is now represented by SFX, sources tell Jon Paul Morosi of FOX Sports (on Twitter).  Bonderman, who was moved to the bullpen after signing a minor league deal with Detroit, will be a free agent this winter.  You can keep track of everyone's representation using the MLBTR Agency Database.
• The Twins made a run at second baseman/left fielder Kensuke Tanaka last winter, but Darren Wolfson of 1500 ESPN (on Twitter) would be surprised if they still had interest.  The Giants designated Tanaka for assignment yesterday.  The 32-year-old hit .329/.400/.397 in 400 plate appearances for San Francisco's Triple-A affiliate this season.
• Earlier today, we learned that Paul Konerko intends to play next season, despite hinting at retirement this season.

“I’m not coming back just to come back for money or because I have one year left (on his contract),” Dunn said. “I’m not coming back to chase home run numbers or whatever. If I end up with 499 and I’m not having fun, see ya – 499 it is.”

Meanwhile, Dunn told Dan Hayes of CSNChicago.com (on Twitter) that "as of right now" he doesn't plan on retiring and plans on playing in 2014.

The soon-to-be 34-year-old would probably feel differently if the White Sox were having a good season rather than one that he termed "a great letdown."  Manager Robin Ventura acknowledged that Dunn has expressed his frustrations to him, but he doesn't see Dunn walking away from the game.  And while Dunn is unhappy with how 2013 has gone, he says that he doesn't blame anyone from the organization in particular.

Dunn's .228/.331/.454 slash line this season may not be up to par with his career numbers, but he hardly looks washed up.  If Dunn does decide to walk away from baseball and another $15MM, he won't be hurting for cash as Baseball Reference estimates his career earnings to date to be ~$98MM.

The 33-year-old Dunn is hitting .227/.332/.465 with 26 homers this season, but his slash line masks what's been a more impressive run since summer began. Since June 1, Dunn is batting .289/.401/.532 with 14 of his 26 homers. American League contenders in need of a bat, such as the Rangers and Orioles, would seem to be logical fits Dunn. The White Sox would likely have to kick in significant cash to make a deal work out, and the more they're willing to include, the more they can expect back in a potential return.

Dunn becomes the third player to have reportedly cleared waivers (though there have likely been others that have gone unreported to this point), joining Michael Young and Jimmy Rollins of the Phillies.