The A's placed outfielder Rajai Davis on the 10-day disabled list with a strained left hamstring among a series of roster moves Tuesday. They also designated Raul Alcantara for assignment and recalled right-hander Cesar Valdez and outfielder Ryan LaMarre from Triple-A Nashville.
Davis' DL stint, his first since 2013, is retroactive to Saturday. He suffered the injury in Thursday night's game against Seattle, but progressed to light jogging this weekend and was expected back soon.
Alcantara struggled in three appearances with the A's, going 0-1 with a 16.71 ERA.