• Full name Gregory Omar Santos
  • Born 08/28/1999 in San Cristobal, Dominican Republic
  • Profile Ht.: 6'2" / Wt.: 190 / Bats: R / Throws: R
  • Debut 04/22/2021

Top Rankings

Organization Prospect Rankings

Minor League Top Prospects

Best Tools List

  • Rated Best Slider in the San Francisco Giants in 2019

Scouting Reports

Career Transactions

  • Seattle Mariners activated RHP Gregory Santos from the 15-day injured list.
  • Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers.
  • Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers.
  • Seattle Mariners placed RHP Gregory Santos on the 15-day injured list retroactive to August 1, 2024. Right biceps inflammation.
  • Seattle Mariners activated RHP Gregory Santos from the 60-day injured list.
  • sent RHP Gregory Santos on a rehab assignment to Everett AquaSox.
  • Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Everett AquaSox.
  • Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers.
  • Seattle Mariners sent RHP Gregory Santos on a rehab assignment to Tacoma Rainiers.
  • Seattle Mariners transferred RHP Gregory Santos from the 15-day injured list to the 60-day injured list. Right latissimus dorsi strain.
  • Seattle Mariners placed RHP Gregory Santos on the 15-day injured list retroactive to March 25, 2024. Right latissimus dorsi strain.
  • Chicago White Sox placed RHP Gregory Santos on the bereavement list.

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