Lewis (shoulder) admitted that he's still struggling to find his rhythm on the mound after a poor second rehab start Tuesday, RYan Posner of MLB.com,/a> reports.

EDGE Analysis

Lewis had been targeting a return to the rotation this weekend but the poor results Tuesday may alter those plans. "I'm just trying to get arm strength up, trying to get my pitch count up," Lewis said. "Of course you don't want to go out and give up runs or give up hits, or anything like that. I kind of feel like I'm still in Spring Training form right now. I just don't feel like I'm very sharp."