New York Giants' middle linebacker Antonio Pierce returned to practice Friday after missing two days because of a mild concussion. "He did everything today, he took every snap, so I will check with him when I go in, but I think he certainly is on his way," Giants' Coach Tom Coughlin said, adding that he expects Pierce to play Sunday in Detroit. The Giants (6-3) and the Lions (6-3) will play to determine the third-best record in the NFC behind Dallas and Green Bay, both 8-1.