The Boston Red Sox now lead Major League Baseball in blown saves with 11.
Boston suffered arguably its most deflating loss of the 2025 season on Tuesday night in walk-off fashion as Javier Baez sent an 80 MPH sweeper from Greg Weissert over the left field wall at Comerica Park, scoring three.
The Red Sox are now 22-22 on the season, a record that screams underachievement given how much talent Boston boasts on paper.
Manager Alex Cora has noted that Boston’s 'pen needs to execute better, but at a certain point, you need to start swapping out guys that aren’t getting the job done, or at least bring in a fresh arm or two.
Enter Luis Guerrero, a 24-year-old right-hander with all the makings of a dominant big-league reliever.
Guerrero, a 17th-round pick in 2021, has shown major-league readiness. In 2025, he’s posted a 3.77 ERA over 14 1/3 innings at Triple-A Worcester, with 11 strikeouts, a 1.19 WHIP, and a .176 batting average against.
In 2024, Guerrero dazzled in his MLB debut, throwing 10 scoreless innings across nine appearances with a 0.80 WHIP and nine strikeouts. His 96-98 mph fastball (peaking at 100) and devastating splitter make him a high-upside flamethrower.
Promoting Guerrero could address Boston’s bullpen woes. His ability to miss bats (over 40% whiff rate in 2024) and handle high-leverage moments positions him as a potential closer candidate.
Sure, the Red Sox were banking on waiting for Guerrero to develop more before thrusting him into a regular MLB role in 2025, but they also didn’t expect the big-league bullpen to struggle like this.
With the Red Sox’s 'pen blowing games, Guerrero’s youth, electric stuff, and proven track record demand a call-up.
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