The Detroit Tigers placed infielder Placido Polanco on the 15-day disabled list with a strained left hamstring prior to Friday's 12-6 victory over Minnesota. Polanco, who was acquired by the Tigers from Philadelphia last month, was batting .324 with two homers and 14 RBI in 27 games with Detroit. The move is retroactive to July 12. As for Percival, he was transferred to the 60-day disabled list. The veteran closer was placed on the 15-day DL on July 14 with a partial tear of the right flexor pronator muscle mass. Percival, who has recorded at least 30 saves in each of the last seven seasons with the Angels, the only active reliever with such a streak, signed as a free agent with the Tigers during the offseason. However, the veteran has appeared in just 26 games for Detroit this year, posting a 1-3 record with a 5.76 ERA and eight saves. In other team news, the Tigers recalled outfielder Curtis Granderson, who finished the contest 2-for-5 with an RBI, from Triple-A Toledo and designated pitcher Doug Creek for assignment.