Utley could miss up to four weeks. The team announced that Michael Martinez had his contract selected and will join the team in Washington Friday.
"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.
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