The Phillies activated Chase Utley from the 15-day disabled list Wednesday afternoon, and he will make his season debut against the Pirates at Citizens Bank Park on Wednesday night.

To make room for Utley on the 25-man roster, the Phillies optioned infielder Michael Martinez to Triple-A Lehigh Valley.

Utley had been on the DL all season with bilateral chondromalacia, a chronic left knee issue. The 33-year-old second baseman spent nine games with Class-A Clearwater, and played one game with Triple-A Lehigh Valley on Tuesday night, when he went 2-for-5 with a home run and played all nine innings at second base.