Baker will be on the Orioles' Opening Day roster, Rich Dubroff of BaltimoreBaseball.com reports.

EDGE Analysis

Baker allowed just one run on one hit and one walk with four strikeouts over four innings in spring training. The 27-year-old made his major-league debut with the Blue Jays last season before being claimed by the Orioles on waivers in November. His strong spring will allow him to start the season in a low-leverage role out of the bullpen, though the Orioles' lack of relief depth could see him move up the pecking order if he pitches well.