Johnson, born and raised in the Baltimore area, is the son of former Orioles pitcher and current MASN analyst Dave Johnson. He is 6-1 with a 4.26 ERA in 43 career Major League games (five starts).
Brittany Ghiroli has covered the Orioles for MLB.com since 2010. Follow her on Facebook and Twitter @britt_ghiroli, and listen to her podcast. This story was not subject to the approval of Major League Baseball or its clubs.