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Giants Add Gregory Santos to Bullpen

The move gives San Francisco a controllable power arm with a chance to regain his 2023 form.

Overview

  • Santos, selected from Triple-A on Wednesday, joined the roster after the Giants optioned Blade Tidwell and moved outfielder Jared Oliva to the 60-day injured list.
  • The 26-year-old right-hander logged a 2.45 ERA over 11 innings at Triple-A Sacramento, though he struck out only six of 44 batters faced.
  • He broke out with the White Sox in 2023 behind a near-99 mph sinker and a hard slider, posting a 3.39 ERA with strong groundball rates.
  • Recent lat and biceps issues in 2024 and knee surgery in April 2025 cut his velocity and limited his time with Seattle before a non-tender last fall.
  • He still has a minor-league option, giving the Giants flexibility as they sort bullpen roles within a group that has opened 2026 with a low 3.03 ERA.