Scouting Report: Alexander Martinez
Colorado Rockies | C
Overall
Summary
Justin Martinez, 24-year-old Arizona Diamondbacks closer, underwent Tommy John surgery in June 2025 following an elbow injury. He has recently begun his recovery with his first bullpen session in May 2026, where he demonstrated encouraging velocity (96-99 mph fastball). Manager Torey Lovullo described the session as "electric." Martinez is expected to require 15 total bullpen sessions before progressing to a minor-league rehab assignment, with a potential return targeted for late August 2026. Prior to injury, Martinez saved 13 games in 2024-25 with a 2.76 ERA and triple-digit fastball velocity.
Strengths
- Velocity maintained at 96-99 mph on first bullpen post-surgery
- Manager described performance as 'electric'
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