Bills coach Chan Gailey said Friday that Kelsay, who was injured during Thursday's practice, would be "out for a little while."
Starting cornerback Terrence McGee (hamstring) is expected to play for Buffalo after missing the past three games. His return would bolster a depleted defensive backfield set to face an explosive Eagles offense led by quarterback Michael Vick.
For a complete look at all injuries around the league, go to NFL.com's injury page.
Copyright 2011 by The Associated Press