Eagles quarterback Nick Foles is being checked for a potential head injury, the club said.
Rookie Matt Barkley has replaced Foles in the lineup.
Foles completed 11-of-29 passes for 80 yards before leaving the game. Fox sideline reporter Pam Oliver indicated Foles is undergoing the NFL’s concussion protocol.
The Cowboys have taken a 17-3 fourth-quarter lead in Philadelphia.