The Rockies have placed rookie shortstop Trevor Story on the 15-day disabled list with a torn ulnar collateral ligament in his left thumb, the club announced Tuesday. He will undergo surgery and expects to miss the remainder of the season.
Story jammed his thumb while sliding into second base in a game against the Mets last Saturday, after his hand was caught on the bag during a head-first dive.
The 23-year-old leads the National League with 27 home runs, and is hitting .272 with 72 RBIs on the season.
In a corresponding move, the Rockies called up Rafael Ynoa from Triple A.