Concussions sidelined three quarterbacks Sunday, with Michael Vick, Alex Smith and Jay Cutler knocked out of games in the first half and leaving their teams wondering about their playing status for next week.
The Eagles' Vick was hit by Dallas linebacker Ernie Sims on an incomplete pass and was slow to get up early in the second quarter of Philadelphia's 38-23 loss. Vick headed for the locker room and was replaced by Nick Foles with the game tied 7-7.
Vick threw a 2-yard touchdown pass to Riley Cooper in the first quarter.
The Bears' Cutler left Chicago's 13-6 loss to Houston after taking a helmet-to-helmet hit from Tim Dobbins. He had just thrown a pass during the first half. On the play, there were offsetting penalties. Cutler was called for an illegal forward pass for being past the line of scrimmage and Dobbins was called for unnecessary roughness.