Kevin Youkilis will begin a minor league rehab stint with Triple-A Pawtucket on Wednesday at Durham, N.C. Youkilis will serve as the designated hitter and get three at-bats. He then will play the field on Thursday for Pawtucket before a final decision is made whether he will rejoin the Red Sox in Philadelphia on Friday. The third baseman was placed on the 15-day disabled list on May 2 (retroactive to April 29) with a back strain.