Scouting Report: Justin Slaten

Summary

Justin Slaten, Boston Red Sox relief pitcher, was activated from the injured list on May 9, 2026, after a month-long absence due to a right oblique strain (originally suffered April 4-8). He completed successful rehab assignments with Double-A Portland and Triple-A Worcester, pitching scoreless innings with strong velocity (96-97 mph fastball, 92-93 mph cutter) that exceeded his own expectations. He made his return appearance on May 10, striking out one over a scoreless inning against the Rays. Prior to injury, Slaten had appeared in four games with a 0 ERA (1 unearned run in 3.1 IP) with 5 strikeouts. His return addresses a critical need in Boston's bullpen, particularly in the seventh-inning role he previously held.