Danny Salazar's postseason role may be in jeopardy after an MRI on Monday found a mild strain in his flexor musculature.
The Indians right-hander will undergo a platelet-rich plasma injection on Tuesday and be shut down from throwing for approximately 10 days.
The timetable for Salazar's return to game action is three to four weeks, meaning his regular season is over. The Indians enter Monday with a seven-game edge over the Tigers in the American League Central. The AL Division Series begins on Oct. 6.
Salazar, who has dealt with various arm injuries this season, exited his start against the Twins on Friday night after four innings due to tightness in his right forearm.