HOUSTON (AP) - Washington outfielder Bryce Harper had surgery on his injured left thumb on Tuesday.
Manager Matt Williams would not commit to a time frame. Just says "that time frame is out there" after reports Monday that he would be out until at least July.
The two-time All-Star was placed on the 15-day disabled list on Sunday with what was then called a sprained left thumb.
He was injured on Friday night against San Diego on a headfirst slide into third base on a triple. He remained in the game until after the next inning.
The 21-year-old Harper is batting .289 with one home run and nine RBIs this season.
Harper was the National League Rookie of the Year in 2012 after hitting .270 with 22 homers and 59 RBIs.