Cardinals activate Mujica, option Rosenthal
To make room for Mujica on the roster, the Cardinals optioned righty Trevor Rosenthal to Triple-A Memphis.
Mujica, 28, was acquired from the Miami Marlins for former first-round draft pick Zack Cox. Mujica has a 4.38 ERA in 41 appearances this year with the Marlins.
Rosenthal was 0-1 with a 4.50 ERA in four games since being recalled from Memphis on July 16.