Suarez is back in Triple-A Norfolk on Thursday after signing a minor-league deal with the Orioles, Andy Kostka of TheBanner.com reports.
Rogers (9-9) took the loss Thursday against the Cardinals, allowing six runs on seven hits and a walk over five innings. He struck out seven.
The Orioles selected Vazquez's contract from Triple-A Norfolk on Wednesday.
The Orioles placed O'Neill on the 10-day injured list Wednesday, retroactive to Sunday, due to right shoulder inflammation.
Wells struck out one in a perfect ninth inning Wednesday to record his fifth save of the season in a 3-0 win over the Tigers.
Peralta (6-11) picked up the win Wednesday, scattering two hits over six scoreless innings in a 3-0 victory over the Tigers. He struck out four without walking a batter.
O'Neill relayed Wednesday that he expects to be placed on the 10-day injured list due to a right rotator cuff strain, Andy Kostka of TheBanner.com reports.
Mayo is not in the lineup for Wednesday's tilt in St. Louis.
Fraley (hernia) went 1-for-3 while playing six innings in right field Tuesday in his first rehab game for Triple-A Durham.
Melton (hamstring) went 1-for-3 with a solo home run and a stolen base Tuesday in his return to the Triple-A Durham lineup after being reinstated from the 7-day injured list.
