TODAY: Winn’s surgery has a two-month recovery timeline, he told NBC Sports Bay Area’s Andrew Baggarly (X link) and other reporters today. Winn didn’t mention the possibility of a return during the postseason if the Giants can get into October, as he instead said he’d be able to have a normal offseason in preparation for the start of Spring Training.
JULY 26: The Giants informed reporters that rookie right-hander Keaton Winn is undergoing ulnar nerve transposition surgery next week (X link via Shayna Rubin of the San Francisco Chronicle). He’ll miss the rest of the season.
Winn is already on the 60-day injured list. He landed on the IL with elbow inflammation a month ago. Winn attempted to restart a throwing program but felt continued soreness, necessitating a shutdown and eventual surgery. There’s no indication that he will not be ready for the start of Spring Training.
The 26-year-old Winn opened the year in San Francisco’s rotation. That was in part due to injuries above him on the depth chart, but Winn fared well for a month. He carried a 3.18 ERA through the end of April behind a huge 60.2% ground-ball rate. The wheels came off thereafter, as Winn’s grounders plummeted and opponents began teeing off. He allowed five or more runs in five of his final six starts.
Winn surpassed the one-year service mark this season. He’s under team control for five more years and won’t be eligible for arbitration for another two seasons. Considering he was one of the better prospects in the organization entering the year, he shouldn’t be in any danger of losing his roster spot. The Giants will need to put him back on their 40-man roster within five days of the conclusion of the World Series.