Reds place RHP Ondrusek (shoulder) on DL
The move is retroactive to July 13.
Ondrusek is 3-1 with an ERA of 4.31 in 29 games this season.
Right-hander Curtis Partch was recalled from Triple-A Louisville.
Partch has pitched in four games with the Reds in 2014. He is 1-0 and has not allowed a run.