Davis was in the starting lineup for Sunday's game against the Houston Astros.
Although the Orioles got back Davis, they lost catcher Matt Wieters, who was placed on the DL with a right elbow strain.
Davis led the majors last year with 53 home runs and 138 RBIs. This season he has two homers and 13 RBIs in 22 games.
Davis went on the DL on April 27, retroactive to April 26, after being pulled from a game against Kansas City. His rehabilitation assignment lasted only one game - a 1 for 4 outing Saturday night for Class A Bowie.