WASHINGTON, D.C. (AP) The St. Louis Cardinals have activated right-hander Trevor Rosenthal from the 10-day disabled list.
The former closer was sidelined with a right lat strain. Right-hander Sam Tuivailala was optioned to Triple-A Memphis to open a spot on the roster.
Rosenthal set the Cardinals' single-season save record with 48 in 2015. He made five spring training appearances, including one start, and struck out 11 with a 1.80 ERA in 10 innings.
Rosenthal was looking to move into the rotation before the injury, but now will resume relief work. The 26-year-old began his career as a starter but moved to the bullpen, where he was the Cardinals' closer for two seasons. He lost his closing role to Seung-Hwan Oh.
Rosenthal finished last season with a 4.46 ERA in 45 relief outings.