OAKLAND -- The A's say right fielder Josh Reddick and right-handed pitcher Sonny Gray will need offseason surgery.
Right-handed pitcher Jarrod Parker, on the other hand, will need rest but not surgery to deal with discomfort in his right forearm.
Parker, Reddick and Gray had MRI exams Friday, the results of which the club announced Monday morning.
Gray, 5-3 with a 2.67 ERA and eight shutout innings in Game 2 of the American League Division Series against Detroit, has an ulnar collateral ligament tear of his left thumb.
He will confer with Dr. Thomas Graham at the Cleveland Clinic later this week.
Reddick, who hit .226 with 12 homers in a season in which his wrist was a constant problem after an April collision with a wall in Houston, is expected to undergo arthroscopic surgery on his sprained right wrist.
First, he will consult with Dr. Mark Belsky, a hand specialist based in Newton, Mass., who performed surgery on Reddick's left wrist in November 2011.
Parker, 12-8 with a 3.97 ERA in 32 starts, was diagnosed as having a right forearm strain.