Scouting Report: Daniel Martinez
Chicago Cubs | SP
Overall
Summary
Justin Martinez, 24-year-old Arizona Diamondbacks closer, underwent Tommy John surgery in June 2025 after suffering 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. The young right-hander previously saved 13 games in 2024-25 with a 2.76 ERA and triple-digit fastball.
Strengths
- Velocity maintained at 96-99 mph on first bullpen post-surgery
- Manager described performance as 'electric'
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