"It's looking doubtful that Arizona Cardinals quarterback Kevin Kolb will start this weekend in his first trip back to Philadelphia, a source with knowledge of the situation said Tuesday.

Kolb is dealing with a fairly significant sprained foot, as well as a turf toe injury that he suffered during a Week 8 loss at Baltimore. According to the Cardinals' official website, Kolb said Tuesday on KGME-AM that a bone bruise "has shown its face" in the last couple of days and he is "touch and go" to practice Wednesday."