"He's been sick for a while, hasn't been able to bounce back," manager Alex Cora said before Boston's game at Baltimore. "We decided to put him on the IL."
Cora said Martin was going home and having testing.
Martin had a terrific season for the Red Sox, going 4-1 with a 1.05 ERA in in 55 appearances. This was his first year with Boston.
The Red Sox recalled right-hander Nick Robertson from Triple-A Worcester to fill Martin's roster spot.