Cowser is out of the lineup for Sunday's game against the Rockies.
Cowser will take a seat along with Jackson Holliday and Ryan O'Hearn while the Orioles face off against southpaw Austin Gomber. Dylan Carlson will start in left field in place of Cowser, who went 1-for-3 with two walks, one stolen base and three runs in Saturday's 18-0 romp.