PHILADELPHIA (AP) _ Dallas Cowboys quarterback Troy Aikman left the game against the Philadelphia Eagles on Sunday after being hit in the head while being sacked.

Aikman was sacked in the first quarter by linebacker William Thomas. As Aikman was going to the ground, former Cowboy Jimmie Jones came in to help and his helmet struck Aikman's, bending the quarterback's neck.

Aikman got up and walked toward the huddle, then went down on one knee. After a few minutes, he was helped off the field by Cowboys personnel and was replaced by Wade Wilson. Aikman later went to the locker room.

Aikman, who was 2-for-6 for 21 yards, was pressured in his brief appearance. The Eagles sacked him twice, pressured him three times and hit him four times.

The Cowboys said Aikman had a neck strain, and his return to the game was questionable.