Philadelphia Eagles quarterback Nick Foles left Sunday's game against Dallas with a head injury.
Foles was sacked by George Selvie and Jarius Wynn on the final play of the third quarter. He walked to the sideline on his own power and was evaluated by trainers. Foles walked to the locker room as the fourth quarter started.
The team said he will not return to the game.
Alex Henery kicked a field goal on the first play of the fourth to cut Dallas' lead to 10-3.
Foles started at quarterback for the second straight week with Michael Vick inactive because of an injured left hamstring. He was 11 of 29 for 80 yards with no touchdowns or interceptions.
Eagles rookie Matt Barkley took over for Foles.
AP NFL website: www.pro32.ap.org