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Is Red Sox prospect Miguel Bleis primed to break out in 2024?

Originally posted on Blogging the Red Sox
By Brendan Campbell | Last updated 1/4/24

The 2023 season was supposed to serve as a launching point of sorts for Red Sox outfield prospect Miguel Bleis.

Bleis, Boston’s top international signee in 2021, came into the season with high expectations after turning heads in his domestic debut the year prior. The Dominican Republic native posted a .895 OPS in 40 Florida Complex League games and was named a 2022 FCL post-season All-Star, leading to him tabbed by MLB.com’s Jim Callis as the Red Sox’ best international prospect since Rafael Devers.

On the heels of such a promising campaign, Bleis entered Baseball America’s top 100 list as the 88th-ranked prospect in the sport last January. Shortly after celebrating his 19th birthday in March, Bleis made headlines in spring training by ripping a two-run single off Alek Manoah and throwing Brandon Belt out at home in a Grapefruit League game against the Blue Jays.

Bleis broke camp with Low-A Salem in April and served as the Red Sox’ Opening Day center fielder. The right-handed hitter got off to a fast start in his first taste of full-season ball, recording at least one hit in his first seven games for Boston’s Carolina League affiliate. He then began to taper off to some degree as the calendar flipped from April to May and wound up missing nearly two weeks of action after injuring his left shoulder on May 11.

Upon returning to Salem’s lineup on May 23, Bleis went just 1-for-18 over his next four games before re-aggravating his left shoulder on a swing in the eighth inning of a 3-2 loss to the Myrtle Beach Pelicans on May 30. Bleis, in visible pain at that moment, was immediately removed from the contest and placed on the minor-league injured list shortly thereafter.

Later diagnosed with a left shoulder subluxation, Bleis underwent season-ending surgery in late June. All told, he slashed .230/.282/.325 with three doubles, three triples, one home run, 16 RBIs, 18 runs scored, 11 stolen bases, 10 walks, and 38 strikeouts in 31 games (142 plate appearances) with Salem. On the other side of the ball, the 6-foot, 170-pounder made 11 starts in center field and 13 in right, registering two outfield assists at each spot while only committing one error in 47 total defensive chances.

In the time that has passed since going under the knife, Bleis has resumed baseball activities at the Red Sox’ Dominican academy in El Toro. As noted by 98.5 The Sports Hub’s Tyler Milliken, the San Pedro de Macoris product looks to be back at full strength, as he has been posting videos to Instagram of him swinging a bat throughout the offseason.

Miguel Bleis getting some swings in after missing most of 2023 due to shoulder surgery.

He’s currently ranked as the #5 prospect in the Red Sox system, per @SoxProspects.

Back in spring training, Bleis said his goal is to become a similar player to Ronald Acuna Jr. pic.twitter.com/88kAD2HRCB
— Tyler Milliken (@tylermilliken_) December 28, 2023

To that end, both Jen McCaffrey of The Athletic and Alex Speier of The Boston Globe wrote in November that, based on separate conversations with Red Sox director of player development Brian Abraham, Bleis should be ready for a normal spring training.

“He’s in full rehab, focusing on time in the weight room, strengthening his shoulder. He went back to the DR for a bit, was at the Dominican academy and just returned to Fort Myers,” Abraham told McCaffrey. “You never want someone to get hurt, but I think it’s a good opportunity for him to improve the mental and physical side and really put a focus on adding really good weight and strength to a body and frame that’s able to do so.”

Coming into the new year, Bleis is currently regarded by Baseball America as the No. 5 prospect in Boston’s farm system and the No. 72 prospect in the sport. In similar fashion, MLB Pipeline has Bleis as its fifth-ranked Red Sox prospect as well, though the outlet excluded him from its season-ending top 100 list.

Earlier this week, MLB Pipeline picked Bleis as the Red Sox prospect most likely to break out in 2024, citing that the soon-to-be 20-year-old “is a center fielder with the potential for at least solid tools across the board.”

Because of the aforementioned shoulder surgery, Bleis’ future is somewhat clouded. As noted by Speier, who also compiles the Sox’ organizational rankings for Baseball America, “any shoulder surgery carries some risk of altering a player’s swing and approach.” This procedure in particular, per Speier, could amplify Bleis’ tendency to be a free-swinger if it results in him losing any extension or looseness in his swing.

Regardless of the uncertainties there, Bleis still possesses five-tool potential and “franchise-changing upside.” He is expected to return to Salem for the start of the 2024 minor-league season and — assuming he remains healthy and in the organization — should have the chance to make the jump to High-A Greenville by the end of the year.

This article first appeared on Blogging the Red Sox and was syndicated with permission.

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