Donovan McNabb didn't need a cane or crutches to walk around, and he joked that ballet dancing was part of his rehab routine. His sense of humor is intact, though a gimpy ankle and sore thumb could keep the five-time Pro Bowl quarterback on the sideline when the Eagles visit New England on Sunday. McNabb didn't practice Wednesday because of a sprained right ankle and a swollen thumb sustained in Philadelphia's 17-7 win over Miami. McNabb hurt the thumb on his throwing hand early and left after injuring his ankle in the second quarter. A.J. Feeley led the Eagles to a pair of touchdowns and would start against the Patriots if McNabb can't play. "You want to have all of your faculties intact before you get back out and be competitive again," McNabb said. "You want to be smart, but you also want to go out there and play."