Phillies placed second baseman Chase Utley on the 15-day disabled list, retroactive to May 21, with a mild oblique strain.

Phillies GM Ruben Amaro is hopeful that Utley will be ready when his two weeks are up, but it's possible he could be out as long as four weeks.  Amaro described the strain as "very mild," so, all things considered, it's pretty good news for the Phils.

"We do believe and hope that Chase will be ready to play in Philadelphia within 15 days," general manager Ruben Amaro Jr. said. "We are being cautious with this injury as it is a tricky one and want to make sure it isn't an issue for him throughout the season."

Utley is batting .272 with seven homers and 25 RBIs. Freddy Galvis has replaced him in the starting lineup.

To replace him on the roster, the Phillies purchased the contract of INF/OF Michael Martinez from Triple-A Lehigh Valley. Martinez has batted .226/.297/.274 with three steals at Lehigh Valley this season.