Escobar, 32 in April, was a consensus top-100 prospect prior to the 2014 season. After making his professional debut in the Rangers organization, Escobar spent several years with the Giants before being swapped to the Red Sox in the deal that sent Jake Peavy to San Francisco at the 2014 trade deadline. Escobar made his MLB debut with Boston later that year, allowing one run on one hit and a hit batter while striking out two and walking none. After spending the 2015 season in the minors, Escobar resurfaced with the Diamondbacks in 2016 and struggled badly with a 7.23 ERA and 5.93 FIP in 23 2/3 innings of work.

While Escobar was claimed off waivers by Cleveland early in the 2016-17 offseason, he was released later that same offseason to pursue opportunities overseas. Since then, Escobar has spent seven seasons in Japan’s Nippon Professional Baseball, pitching for the Yokohama Bay Stars and Hokkaido Nippon Ham Fighters. In that time, he’s logged 395 appearances overseas with a 3.17 ERA and a 23.3% strikeout rate in 392 1/3 innings of work. Since the start of the 2019 season, he’s been even more impressive with a 2.71 ERA and a 24% strikeout rate.

Now, Escobar is set to return to stateside ball for the first time since the 2016 season. He’ll do so with a Cubs team that’s in clear need of bullpen upgrades; Chicago’s relief corps was middle-of-the-pack last season in terms of ERA (3.85), FIP (4.05), and fWAR (4.4) while posting the league’s second-highest walk rate (11%).

Adbert Alzolay performed respectably as the Cubs’ closer. It’s certainly feasible that right-handers Mark Leiter Jr. and Julian Merryweather will be able to contribute once again in 2024, but the club’s bullpen has little certainty beyond those provisional top three arms, particularly if Javier Assad’s services are required in the starting rotation). Escobar also provides the club with some needed left-handed depth, after Brandon Hughes was non-tendered last week.

Yomiuri Giants (77-64-2 record in 2019):

• Hisashi Iwakuma, RHP: Perhaps the most well-known player on this list, Iwakuma was a rock in the Mariners’ rotation from 2012-16 before shoulder injuries interrupted a very strong MLB run. He signed with NPB’s Giants in the 2018-19 offseason but was only able to throw two minor league innings last year. Now 39, he’ll take another shot at a return in 2020.
• Gerardo Parra, OF: The man who brought “Baby Shark” to Nationals Park and celebrated a World Series win last October took an early free-agent deal with the Giants back on Nov. 20. The 33-year-old batted .250/.300/.447 with the Nats last year.
• Rubby De La Rosa, RHP: Once considered to be among the game’s top pitching prospects, the now 31-year-old De La Rosa had a decent run with the Red Sox and D-backs from 2014-17 before injuries derailed his career. He made his NPB debut with the Giants last year, pitching to a 2.25 ERA with a 32-to-5 K/BB ratio in 24 innings.
• Angel Sanchez, RHP: Pirates fans are excused if they don’t remember Sanchez’s brief 12-inning cup of coffee from the 2017 season. Sanchez, now 30, had a very promising 2015 between Double-A and Triple-A before his 2016 season was lost to Tommy John surgery. He’s spent the past two years with the KBO’s SK Wyverns, including an impressive 2.62 ERA with 8.1 K/9 against 2.3 BB/9 in 165 innings in 2019.
• Thyago Vieira, RHP: The 26-year-old Vieira was an intriguing prospect with the Mariners and White Sox due to his huge fastball velocity, but he was hit hard in 25 2/3 MLB frames and in the upper minors. This will be his first season in Japan.

Yokohama DeNA BayStars (71-69-3):

• Jose Lopez, 1B: Yes — it’s that Jose Lopez. An All-Star second baseman with the Mariners way back in 2006, Lopez is now 36 years old and a seven-year veteran in NPB. In two seasons with the Giants and five with the BayStars, he’s a .276/.317/.500 hitter with 186 home runs.
• Spencer Patton, RHP: The 32-year-old hasn’t pitched in the big leagues since 2016 and has just a 6.26 ERA in 54 frames between the Rangers and Cubs. But Patton has made a name for himself with the BayStars, for whom he pitched to a combined 2.64 ERA in 116 innings from 2017-18. He had a down year in ’19 and will be looking for better health and better results in 2020.
• Edwin Escobar, LHP: Still just 28, Escobar hasn’t pitched in the Majors since a 2016 cameo with the D-backs. That’s due largely to the success he’s found in Japan, where he’s logged a 3.36 ERA with 9.5 K/9 and 3.4 BB/9 in three seasons out of the BayStars’ bullpen.
• Tyler Austin, OF: Austin has shown plenty of power in parts of four MLB seasons, but his strikeouts have limited him to a .219/.292/.451 overall batting line. The former Yankees prospect will be suiting up for the first time in NPB this season.
• Neftali Soto, INF/OF: The 31-year-old Soto saw all of 44 MLB plate appearances with the Reds in 2013-14, but he’s hit like a star in Japan. In two seasons with the Yokohama club, he’s batted .288/.355/.594 with 84 home runs inn 1043 plate appearances. He’ll be a free agent next year and could potentially draw some MLB interest.

Hanshin Tigers (69-68-6):

• Kyuji Fujikawa, RHP: The now 39-year-old Fujikawa never took off after signing with the Cubs for the 2013 season. He returned to NPB in 2016 and has regained his status as a high-end reliever with his original club, the Tigers. Fujikawa whiffed 83 hitters and posted a 1.77 ERA in 56 innings last year.
• Kosuke Fukudome, OF: Another former Cub, Fukudome is still chugging along at 43 years old. He hit .256/.347/.394 in 403 plate appearances with the Tigers last season — his 16th in NPB.
• Justin Bour, 1B/DH: Bour blasted 92 home runs in a six-year run with the Marlins, Phillies and Angels, but he never hit much upon leaving Miami. His power should play well in his NPB debut this year, and hopefully his “Bourtobello Crushroom” nickname catches on there (even though Bour told Sports Illustrated he’s never actually been called by that nickname, it still appears on his Baseball-Reference page).
• Jon Edwards, RHP: Edwards, 32, has seen MLB time with the Rangers, Indians and Padres but never cemented himself as a steady contributor. He boasts a 3.08 ERA and 12.4 K/9 in parts of four Triple-A seasons, however. This will be his NPB debut.
• Onelki Garcia, RHP: Garcia, 30, has just 7 1/3 MLB innings to his name and will return to the Tigers for a second season after struggling to a 4.69 ERA in 103 2/3 frames last year. He did post a strong 2.99 mark with the Chunichi Dragons in 2018.
• Jefry Marte, 1B/3B: Marte never found his stride in parts of four seasons with the Tigers or Angels from 2015-18, but he posted a .284/.381/.444 slash in his debut effort with Hanshin last season.
• Jerry Sands, OF: The 32-year-old Sands had a journeyman career in the U.S. but hit at star levels in the Korea Baseball Organization over the past two seasons: .306/.391/.574. He signed with Hanshin this winter and will be making his NPB debut.

Hiroshima Toyo Carp (70-70-3):

• Kris Johnson, LHP: Johnson, 35, barely got a look with the Pirates or Twins, but he’s been one of Japan’s best pitchers over the past half decade. In five seasons, all with the Carp, he has a combined 2.54 ERA with averages of seven strikeouts and three walks per nine innings.
• DJ Johnson, RHP: This will be the first NPB season for Johnson, who posted a 4.88 ERA in 31 2/3 innings with the Rockies over the past couple of seasons. As an undrafted player who has also spent time on the indie circuit, the 30-year-old Johnson is cultivating quite the unique baseball career.
• Tayler Scott, RHP: The second South African-born player to make it to the big leagues — Gift Ngoepe was the first — Scott was hit hard in 16 1/3 frames between the Mariners and Orioles last year. However, the 28-year-old also tossed 16 frames with just one run allowed and a 21-to-3 K/BB ratio with the Orioles’ Triple-A club in ’19.
• Jose Pirela, OF: Pirela hit well in a half season with the Padres back in 2017, but he’s struggled in the Majors outside that run. He was never able to win the second base gig in San Diego and was lost in the shuffle of their crowded outfield mix. Pirela brings a career .257/.308/.392 MLB slash to his debut season in Japan, but he’s a .311/.362/.493 hitter in Triple-A.

Chunichi Dragons (68-73-2):

• Dayan Viciedo, 1B: White Sox fans surely remember “The Tank” from his 2010-14 stretch with the South Siders, but he never blossomed into the star they hoped he could. Vicideo hit .254/.298/.424 in just shy of 1800 MLB plate appearances, but he’s a .303/.372/.502 hitter in four seasons as a Dragon.
• Moises Sierra, OF: Speaking of former White Sox outfielders, Sierra’s run with the ChiSox was much more brief than that of Viciedo. He played 83 games there and 207 total in the big leagues from 2012-18, hitting .235/.287/.362 in the process. Sierra posted outrageous numbers in the Mexican League last year (.355/.464/.572) and will make his NPB debut in 2020.
• Enny Romero, LHP: Romero pitched quite well for the 2017 Nats but has otherwise struggled in the Majors. He spent most of last season in the Dragons’ rotation, pitching to a 4.26 ERA through 116 1/3 frames.
• Zoilo Almonte, OF: The 30-year-old Almonte never caught on with the Yankees despite a long look in their farm system, but he’s broken out with the Chunichi club in NPB. In two prior seasons, Almonte is a .323/.372/.491 hitter.

Tokyo Yakult Swallows (59-82-2):

• Nori Aoki, OF: Aoki may be 38 years old, but he’s still a productive hitter. In 565 plate appearances with the Swallows in 2019, he batted .297/.385/.442 with 16 long balls. That’s more power than he showed in MLB, but his six-year run in the Majors was still quite solid: .285/.350/.387, 10.5 WAR.
• Alcides Escobar, SS: Aoki’s former Royals teammate will join him for his debut NPB campaign once play resumes in two weeks. The 33-year-old Escobar’s bat tailed off dramatically in his final big league seasons, but he’s a former All-Star, Gold Glove winner and World Series champion.
• Gabriel Ynoa, RHP: A longtime Mets farmhand, the 27-year-old Ynoa never found much success in the Majors (5.39 ERA in 163 2/3 innings). Ynoa soaked up 110 innings for a disastrous Orioles pitching staff in 2019, but he’ll hope to make more of an impact in his NPB debut.
• Matt Koch, RHP: Koch, 29, never found his footing in four years with the D-backs or even in Triple-A, but he threw well up through the Double-A level in his career.
• Scott McGough, RHP: The 30-year-old McGough has just 6 2/3 innings in the Majors, all with the 2015 Marlins, but he was sharp for Yakult in 2019, pitching to a 3.15 ERA with nearly a strikeout per frame in 68 2/3 innings of relief.
• Albert Suarez, RHP: Once a Rule 5 pick by the Giants, Suarez also saw some time with the Yakult club last season, logging a 1.54 ERA in 17 2/3 frames. He also spent time with their minor league club, but he’ll hope to establish himself further in 2020.
• Ryota Igarashi, RHP: The 41-year-old Igarashi’s time with the Mets, Yankees and Blue Jays in 2010-12 was ugly, but he’s been a consistently strong bullpen presence in a whopping 17 NPB seasons. Last year’s 2.98 ERA in 42 1/3 frames was a near-match with his 2.93 career mark, although his 5.1 BB/9 mark was a bit of a red flag.

We’ve seen foreign stints help spur big league revivals from quite a few players. Eric Thames, Miles Mikolas, and Chris Martin are among those that played significant roles in the 2019 MLB campaign. Whether any of the players covered below will do so remains to be seen, but there’s certainly a path.

We started by looking at position players and pitchers in South Korea’s Korea Baseball Organization (KBO) before turning to the hitters of Japan’s Nippon Professional Baseball (NPB). Remember, teams in these leagues face limits on the number of non-native players they can carry on a roster. That creates a lot of pressure to secure big production from those roster spots, which often spurs mid-season change.

Here’s a 2019 wrap on the NPB’s hurlers from abroad …

• The Saitama Seibu Lions slugged their way to the best record in the Japan Pacific League, but they got some of their best innings from imported pitchers. Former Dodgers and Athletics righty Zach Neal turned in 100 1/3 innings of 2.87 ERA ball after spending some time with their minor league affiliate early on. He could be eyeing a return to the Majors, though a 4.6 K/9 rate in Japan is a red flag even if it’s accompanied by a pristine 1.3 BB/9 mark. Righties Kyle Martin and Deunte Heath, who had quite brief stints with the Red Sox and White Sox, respectively, helped the Lions as well. Martin notched a 3.67 ERA in 41 2/3 innings (albeit with 28 walks), while Heath chipped in 31 1/3 innings of 3.73 ERA ball and averaged 9.8 K/9 against 4.0 BB/9.
• Mariners fans surely remember Cuban-born lefty Ariel Miranda, who started 40 games for them from 2016-18. Now 30, Miranda tossed 86 innings for the Fukuoka Softbank Hawks and notched a respectable 4.19 ERA in a hitter-friendly league, though he carried an unsightly 58-to-48 K/BB ratio. Dutch righty Rick van den Hurk hasn’t pitched in the Majors since 2012, having carved out a career between the KBO and NPB. He only pitched 17 2/3 innings for the Hawks this season but turned in a 3.12 ERA and a terrific 22-to-2 K/BB ratio. Given his track record there — 3.50 ERA in nearly 500 NPB innings — the 34-year-old could be in Japan to stay. The Hawks also enjoyed 57 2/3 innings of 3.90 ERA ball from Japanese-born southpaw Tsuyoshi Wada, who was with the Cubs from 2014-15 before returning to Japan. At 38 years of age, he’s still chugging along.
• Former Twins righty Alan Busenitz and former Indians righty Frank Herrmann formed a dominant setup combo for the Tohoku Rakuten Golden Eagles. Busenitz chipped in 51 frames with a 1.94 ERA with 7.9 K/9 against 3.5 BB/9. Herrmann’s 3.04 ERA and 49-to-16 K/BB ratio in 47 2/3 innings hardly went unnoticed, either. Herrmann will turn 36 early next season, but Busenitz is still just 29.
• The Hokkaido Nippon Ham Fighters didn’t benefit much from former big leaguers, as right-hander Johnny Barbato struggled through 32 innings. Avid Indians fans may remember right-hander Toru Murata, who pitched 3 1/3 innings for the Tribe in ’15 after spending several years in their minor league system. He chipped in 34 innings with a 3.18 ERA but walked nearly as many hitters (21) as he struck out (22). Former Cubs righty Justin Hancock tossed seven innings but was hit hard. Padres diehards may remember minor league righty Bryan Rodriguez, who tossed 91 1/3 innings of 3.25 ERA ball for the Fighters.
• Left-hander Andrew Albers, formerly of the Twins and Mariners, was dominant for the Orix Buffaloes in 2018 but took a step back with a 5.83 ERA in in 63 1/3 innings. The Buffaloes, however, received a seventh strong season from perhaps forgotten Cardinals righty Brandon Dickson, who posted a 3.03 ERA in 35 2/3 frames and has racked up 856 innings of 3.32 ERA ball since first signing with the Buffaloes back in 2013. Orix also picked up former Pirates prospect Tyler Eppler prior to the 2019 season, and after spending some time with the Buffaloes’ minor league club, he emerged with a 4.02 ERA, 7.2 K/9 and 2.6 BB/9 in 31 1/3 innings.
• The 2019 Yomiuri Giants received innings from four former big league pitchers: Taylor Jungmann, Rubby De La Rosa, Scott Mathieson and Ryan Cook. Jungmann struggled to an ERA just over 6.00 in 44 1/3 innings, while De La Rosa fared best (2.25 ERA in 25 innings). Mathieson, now 35, was limited to 22 2/3 innings of 4.37 ERA ball but has been a consistently impressive presence in the Giants’ bullpen since 2012 (2.46 ERA, 54 saves in 431 frames). Cook tallied just 15 innings and surrendered eight runs.
• Lefty Edwin Escobar’s biggest claim to fame in affiliated stateside ball might’ve been being included in a trade for Jake Peavy, but the 27-year-old has become a force in Japan. In his third season overseas, he turned in 75 1/3 innings of 2.51 ERA ball with 10.5 K/9 and 2.9 BB/9 for the second-place Yokohama DeNa BayStars. Former Cubs righty Spencer Patton took a step back after a dominant 2018 with the BayStars, tossing 36 2/3 innings but posting a 5.15 ERA. He did rack up 45 punchouts in that time. And former Nats lefty Sammy Solis made a brief 2019 cameo with the Yokohama club as well, tossing 4 1/3 innings with one run allowed.
• Right-hander Randy Messenger, of mid-2000s Marlins/Giants/Mariners fame, has become one of NPB’s best starters but struggled a bit in his age-37 season (4.67 ERA in 79 innings). But with more than 1600 innings of 3.13 ERA ball in a decade’s worth of time in Japan, he’s left a legacy with the Hanshin Tigers and been compensated handsomely for his efforts. The Tigers also received 103 2/3 innings of 4.69 ERA ball from righty Onelki Garcia, who tossed a combined 7 1/3 innings between the Dodgers and Royals in MLB. Hanshin was also a who’s-who of former Cubs, with righties Pierce Johnson, Kyuji Fujikawa and Rafael Dolis logging significant time. Johnson was brilliant, notching an immaculate 1.38 EA with 14.0 K/9 against 2.0 BB/9 in 58 2/3 frames. Fujikawa (1.77 ERA) and Dolis (2.11 ERA) split closing duties and combined for 35 saves in 111 1/3 innings (both split almost evenly).
• Former big league righties Casey Lawrence (Mariners) and Johnny Hellweg (Brewers) made extremely fleeting appearances with the Hiroshima Carp, who boasted perhaps the most impactful foreign pitcher in the league: lefty Kris Johnson. The former Twins/Pirates hurler has been flat-out dominant in five seasons with the Carp, totaling 756 1/3 innings with a 2.54 ERA, 7.0 K/9 and 3.0 BB/9 since making the jump. He’ll turn 35 next week, but it’s perhaps worth noting that the former Sawamura Award winner’s record contract is expiring.
• Remember situational lefty Enny Romero? He’s not only starting games for the Chunichi Dragons, he’s doing so fairly well. In 116 frames this year, he posted a 4.26 ERA with 8.1 K/9 against 4.3 BB/9. Fellow southpaw Joely Rodriguez, who spent parts of two seasons with the Phillies, overwhelmed NPB hitters with a 1.64 ERA, 11.5 K/9 and 2.1 BB/9 in 55 2/3 frames out of the Dragons’ pen. Even Daisuke Matsuzaka — yes, that Daisuke Matsuzaka — tossed 5 1/3 innings with the Dragons at the age of 39, but he didn’t fare well. To this point, however, he’s announced no plans to retire.
• Lastly, the Yakult Swallows had five former big leaguers suit up for them: righty David Buchanan, right-hander Scott McGough, southpaw David Huff, righty Ryota Igarashi (blast from the past!) and right-hander Albert Suarez. Buchanan paced the group at 99 2/3 innings, though his 4.79 ERA wasn’t much to behold. McGough notched 11 saves and a 3.15 ERA, however, while Huff continued his strong overseas career with a 3.97 ERA. Igarashi is still going strong with a 2.98 ERA at age 40, and Suarez yielded just three runs in 17 2/3 innings.

Escobar, 24, struggled to a 7.23 ERA in his 23 2/3 MLB innings in 2016, all of which came with the Diamondbacks. The Indians claimed him off waivers after the season ended, suggesting that major-league organizations are still intrigued by his arm despite those difficulties.

Escobar, who rated as a top-100 prospect leaguewide before the 2014 season, has largely underwhelmed since reaching the highest level of the minors that year. Over his 286 total Triple-A innings, he carries a 4.63 ERA with 6.5 K/9 and 3.4 BB/9. Still, he’s certainly young enough to engineer a return to the top level of the game if he throws well in Japan.

Cleveland originally picked up the 24-year-old Escobar off waivers from the Diamondbacks in November, so his time with the organization could come to an end before he so much as throws a pitch. Escobar tossed 23 2/3 innings of relief for Arizona this past season and yielded a 7.23 ERA (19 earned runs) with a 17-to-12 K/BB ratio in that time (three of the walks were intentional). He’s pitched better in Triple-A but still comes with a modest track record, having compiled a 4.63 ERA with 6.5 K/9 against 3.4 BB/9 in 286 innings at that level.

Escobar won’t turn 25 until late April, so he’s still relatively young, and he’s traditionally held lefties in check quite well. In 2016, same-handed batters hit .266/.329/.329 against him between the Majors and Triple-A, and in three of the four prior seasons, he held lefties to a sub-.600 OPS. As a former Top 100 prospect and a player with baseball in his bloodlines — Escobar is the cousin of Royals shortstop Alcides Escobar, Angels righty Vicente Campos and retired right-hander Kelvim Escobar — Escobar could find himself claimed by a rival club looking to add some left-handed depth to its ranks.

Escobar, 24, pitched 23 2/3 innings of relief for Arizona this past season and allowed 19 runs (7.23 ERA) with a 17-to-12 K/BB ratio, although three of those free passes were issued intentionally. In 286 innings at the Triple-A level, Escobar has a 4.63 ERA with 6.5 K/9 against 3.4 BB/9. The former Giants and Red Sox farmhand found himself in Arizona by way of waiver claim back in April and comes from a baseball family, as he’s the cousin of Royals shortstop Alcides Escobar, Angels righty Vicente Campos and retired right-hander Kelvim Escobar. His father, Jose, also briefly played in the Majors in the early 90s as well. Escobar is the second lefty to be claimed by Cleveland today, as the Indians also claimed Tim Cooney from St. Louis.

The well-traveled Gimenez returned to the organization that drafted him this season and nearly captured a World Series ring in the process. The 33-year-old batted a timid .216/.272/.331, but right-hander Trevor Bauer credited Gimenez’s work behind the plate a great deal for the turnaround and consistently solid results he delivered for much of the season. Gimenez figures to elect free agency and seek a new organization this winter. He’ll do so with a career .218/.297/.335 line across 776 Major League plate appearances and a 24 percent caught-stealing rate in 215 career games behind the dish.

• Infielder Reid Brignac has been outrighted to Triple-A by the Braves after clearing waivers, David O’Brien of the Atlanta Journal-Constitution reports on Twitter. The 30-year-old has seen only scattered action in recent seasons, but appeared in over 200 games over 2010 and 2011 with the Rays. All told, Brignac owns a .219/.264/.309 slash line in 951 plate appearances over parts of nine seasons in the big leagues.
• The Diamondbacks optioned slugging outfield prospect Peter O’Brien back to Triple-A, the club announced.  Left-hander Edwin Escobar will be called up to start today’s game.  O’Brien’s latest stint with the D’Backs ended up lasting just a few days and consisted of a single pinch-hit appearance on Friday.  Ranked as the No. 7 prospect in Arizona’s system, O’Brien has put up big numbers at Triple-A Reno over the last two seasons, and he already has 12 homers in 182 Triple-A plate appearance this year.  Escobar was claimed off waivers from the Red Sox last month and will be making his first Major League start.  His previous experience in the bigs consists of two relief innings with Boston in 2014.
• The Giants released southpaw Mike Kickham, Baseball America’s Matt Eddy reports.  Kickham was originally drafted by San Francisco in 2010 and appeared in 14 games with the Giants in 2013-14, which were thus far his only tastes of the major leagues.  The lefty spent 2015 bouncing between the Cubs, Mariners and Rangers organizations before signing a minor league deal with the Giants this past winter.  Kickham has a 4.17 ERA, 7.8 K/9 and 1.83 K/BB over 561 1/3 innings in the minors, with 100 of his 117 career games coming as a starting pitcher.
• Earlier this week, the Tigers released outfielder Nate Schierholtz.  The veteran signed a minor league contract with Detroit last winter.  Schierholtz has a .253/.302/.405 slash line over 2275 career PA with the Giants, Phillies, Cubs and Nationals from 2007-14.  He spent the 2015 season playing in Japan, an experience Schierholtz discussed with MLBTR’s Zach Links during Spring Training.

The 24-year-old Escobar came to the Red Sox alongside right-hander Heath Hembree in the 2014 trade that sent right-hander Jake Peavy to the Giants. Once rated among baseball’s Top 100 prospects by both Baseball America and MLB.com, Escobar’s star has faded since being acquired by the Sox. He worked to a 5.07 ERA in 49 2/3 innings at the Triple-A level last season and, most troubling of all, walked more batters (25) than he struck out (24). Escobar was also homer-prone with Pawtucket last season, surrendering eight long balls in those 49 2/3 frames. His control problems continued this past offseason in the Venezuelan Winter League, when he issued 19 free passes against just nine strikeouts in 27 innings of work.

The D-backs will hope that they can restore Escobar’s control and, in turn, see his production return to its lofty 2013 heights. That season, in 128 2/3 innings between Class-A Advanced and Double-A, Escobar posted a 2.80 ERA with excellent averages of 10.2 strikeouts and 2.1 walks per nine innings pitched.

Boston will be forced to expose Escobar to waivers, if it can’t first work out a trade, because of a need for fresh arms at the major league level. In addition to Cuevas, Noe Ramirez will be coming back up as Joe Kelly hits the DL. Infielder Marco Hernandez is heading down to Pawtucket on optional assignment to clear room for Ramirez.

Escobar, who’ll soon turn 24, came to the Sox along with Heath Hembree from the Giants in the 2014 Jake Peavy trade. Though he was added to San Francisco’s major league roster before the 2013 season, he has only made two major league appearances; this is his final optionable year.

Though he has previously received some top-100 prospect consideration, Escobar hasn’t been terribly impressive since coming to Boston. Last year, he worked to a 5.07 ERA in 49 2/3 Triple-A innings while seeing time as both a reliever and a starter. He issued 25 walks against just 24 strikeouts in that span — a far cry from the impressive K:BB ratios he sported at times earlier in his minor league career.

Here’s some more news surrounding the defending World Series champs…

• The Royals, Dodgers and Nationals are the latest known suitors for reliever Andrew Miller, according to ESPN Boston’s Gordon Edes and Peter Gammons of GammonsDaily.com. (Edes reported the Royals’ interest while Gammons reported on the two NL teams.)  Boston is known to be shopping Miller, with the Braves and Pirates also amongst the clubs checking in on the lefty.  Miller has posted an outstanding 2.45 ERA, 14.5 K/9 and 5.0 K/BB ratio over 40 1/3 relief innings for the Sox this season.
• Also from Gammons, several other teams were interested in Edwin Escobar and Heath Hembree, the two ex-Giants prospects obtained by the Red Sox in the Jake Peavy trade.  Two different rival executives told Gammons they tried to get Hembree as a future set-up man, while Escobar’s stock was higher before he began his tough season at Triple-A.
• In a piece full of notes and observations about the Red Sox, Peter Abraham of the Boston Globe is baffled that Lester and the Sox seemed so mutually interested in a contract extension yet now Lester could be a trade candidate.  “Why the Sox seem almost eager to chase away one of their cornerstone players is a mystery,” Abraham writes, predicting that if Lester hits the open market, he’ll sign elsewhere since another teams will spend big for the southpaw.
• Also from Abraham, he opines that the Red Sox should extend Miller rather than trade him, stay away from Matt Kemp in any trade talks with the Dodgers and release struggling reliever Edward Mujica.

Snyder was selected from San Francisco by the Orioles in last year's Rule 5 draft, then immediately dealt to the Rangers as part of the Kevin Millwood–Chris Ray trade. Snyder did not make Texas' opening day roster and was offered back to the Giants, but the Rangers had hoped to work out a deal that would allow them to retain the left-hander. The two sides completed the transaction by sending Escobar, another lefty, from Texas to San Francisco.

The 24-year-old Snyder posted a 2.88 ERA in 97 innings for the Giants' Double A affiliate in 2009, and has been assigned outright to the Rangers' Double A affiliate.

Escobar, meanwhile, turns 18 this month, and has yet to pitch above rookie ball. The Venezuelan left-hander, a relative of Alcides Escobar and Kelvim Escobar, was signed by the Rangers in 2008.