The Red Sox placed right-hander Sonny Gray on the 15-day injured list Tuesday with a right hamstring strain.
Boston recalled left-hander Tyler Samaniego from Triple-A Worcester in a corresponding transaction.
Gray, 36, left Monday’s start against the visiting Detroit Tigers in the third inning with hamstring tightness.
The three-time All-Star is 2-1 with a 4.30 ERA through five starts in his first season with the Red Sox. The 14-year veteran is 127-103 with a 3.59 ERA with six teams.
Samaniego, 27, made his major league debut on April 8. He has allowed no hits or runs in three relief appearances wtih Boston, fanning four and walking three batters in 3 2/3 innings.
