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Scouting Report
Updated May 19, 2026
Juan Valera, 19-year-old Boston Red Sox pitching prospect (ranked 4th-5th in system), underwent Tommy John surgery in May 2026 after suffering right elbow inflammation during his third start of the season. Despite an exceptional start (17 strikeouts in 9.1 innings, 1.93 ERA, .125 BAA), the injury ended his season. Recovery timeline is 12-18 months, likely keeping him out through most of 2027. MLB.com scouts have suggested a potential future closer role due to durability concerns as a starter, though his high-velocity fastball (96-98 mph, touching 101.7 mph) and slider arsenal remain elite. This is his second significant elbow injury in two years, raising health concerns despite his exceptional talent.
Strengths
- + Elite fastball velocity (96-98 mph, touches 101.7 mph)
- + Exceptional strikeout rate (17 K in 9.1 IP to start 2026)
- + Low ERA (1.93) and BAA (.125) in early season
- + Diverse pitch mix (fastball, slider, sweeper, changeup)
- + Made Baseball America Top 100 prospects list
- + High ceiling as mid-rotation starter per SoxProspects
- + Successful Tommy John surgery performed by renowned Dr. Jeffrey Dugas
- + Young age (19) allows for recovery and development time
Injury Status: IL-60
About
Felix Valerio is a shortstop for the St Louis Cardinals.
Player Overview
SS
St Louis Cardinals