Eagles running back Brian Westbrook was knocked out with a concussion during Monday night's win over the Giants.
Westbrook walked off the field after laying motionless for several moments.
Philadelphia has back-to-back games against rivals New York and Dallas on the schedule.
"We obviously know in this division, it can be a half-game, a game away from you being in first or you being in second," quarterback Donovan McNabb said.
Westbrook will go through medical tests before his status for next week is determined.
Concussion Knocked Westbrook Out