In this quick blurb from mlb.com, Carlos Ruiz spoke about possibly just missing the remaining month of the season to reccover:
"I don't want to come back and the injury happens again. I don't try to push it too much -- just taking it nice and easy with my running. If I feel something, stop. But so far, I feel real good. It'll be a little hard. It's not completely gone. I still feel just a little bit."
With the Phillies all but eliminated from playoff contention and Erik Kratz getting a chance to show whether or not he belongs in the Phillies future plans, there is no real need to risk a more permanent, damaging injury.
Ruiz first started missing time in late July before hitting the disabled list.