The injury was sustained in Sunday's 27-20 loss to the Washington Redskins. Exactly how Foles sustained the injury is unknown, but Reid said he thinks the injury came on the second to last play of the first half.
Foles was evaluated at halftime, and returned to play in the second half.
Reid said the injury is significant enough that Foles will not play next week in the season finale against the New York Giants.
