The Mariners have placed center fielder Austin Jackson on the 15-day disabled list and called up shortstop Chris Taylor and left-handed reliever Joe Beimel from Triple-A Tacoma.
Jackson, who has hit either leadoff or second for the majority of Seattle's games this season, suffered a sprained ankle while trying to beat out an infield grounder in the third inning of Sunday's loss to Houston. He has a .242 batting average with two home runs, 11 runs and four RBIs in 25 games.
Taylor and Beimel were promoted to fill the roster spots of relievers Tyler Olson and Yoervis Medina, who were sent down Sunday to Tacoma.