Nelson Cruz #17 poses for a portrait during the Texas rangers Photo Day at Surprise on March 2, 2010 in Surprise, Arizona.
The move was made before Monday night's game at Tampa Bay.
Cruz came out of Saturday night's game with a tight hamstring. An MRI exam on Sunday showed no tear, but inflammation around the muscle.
Cruz had already been on the disabled list twice this season, once for each hamstring. In his 77 games, Cruz is hitting .320 with 16 home runs and 64 RBIs.