Carson Palmer's career could be over

The knee injury that Palmer sustained on Sunday against the Steelers could possibly be career-ending according to his surgeon. The injury included numerous ligament tears, a shredded ligament, damaged cartilage and a dislocated kneecap. Palmer had surgery Tuesday in Houston. Doctors used grafts from other parts of his body and donated tissue to fix the damage during an operation that lasted more than two hours. Palmer headed back to California on Thursday to do his rehabilitation.