Righthander Josh Tomlin will pitch in his place.
MLB.com's Jordan Bastian reported Friday that Kluber could miss his next one or two starts due to the injury, but the ace is expected to pitch again this season.
Kluber, 29, was last season's American League Cy Young Award winner, and is currently 8–13 with a 3.41 ERA in his fifth MLB season. He leads the league with 200 1/3 innings pitched, and is third in strikeouts with 219.
Entering Friday, the Indians sat six games behind the Texas Rangers for the second Wild Card spot.
- Kayla Lombardo