Injury report: Amukamara's concussion

ARLINGTON, Texas -- New York Giants cornerback Prince Amukamara left Sunday's season-opening game in the second quarter with a concussion and did not return. His status for next week's home game against Denver is, due to the nature of concussions and the league's policy for dealing with them, far from determined. Amukamara likely will have to undergo tests before he is cleared to practice this week, and continued testing throughout the week before he can be cleared to play.

The Giants offered no update on Amukamara's status after the game. Concussion recovery times vary greatly from case to case and player to player.

Amukamara was injured when he and Giants safety Ryan Mundy collided, head-to-head, while making a tackle. Amukamara's neck snapped backwards, and he crumpled to the ground, but he did not appear to lose consciousness and he walked off the field on his own power. Mundy did as well, and he was cleared to return to the game and did.

"I'm good," Mundy said after the game. "It's a tough situation -- a quick slant, and I'm the deep middle safety and I'm breaking to the ball. Anytime the ball is thrown over the middle, a violent collision is highly likely."

If Amukamara can't play Sunday against Peyton Manning and the Broncos, the Giants likely would start Aaron Ross at cornerback opposite Corey Webster and play Terrell Thomas in the slot against Wes Welker. Thomas worked exclusively in the slot Sunday night (mainly against Miles Austin) before and after the Amukamara injury.

The Giants' secondary is already thin due to the loss of starting safety Stevie Brown for the season after he tore his ACL in the preseason. That injury elevated Mundy to a starting role and left rookie Cooper Taylor as the only backup safety on the roster.

Other injury updates:

  • Linebacker Dan Connor also left the game in the second quarter with what the team called a "burner." He did not return to the game, and his status for next week is also up in the air. His replacement at middle linebacker Mark Herzlich, had a tough time trying to handle tight end Jason Witten. And not to harp on this stuff, but the Broncos have a tight end, Julius Thomas, who had five catches for 110 yards and two touchdowns in their season opener Thursday.

  • On the play after Connor was hurt, defensive tackle Cullen Jenkins went down as well, but this one was fishy. The Cowboys accused Jenkins, during and after the game, of faking the injury to slow down their no-huddle offense during a portion of the game at which the Giants' defense had been on the field forever and was getting tired. Dallas ended up scoring on the drive anyway, but let's just say I wouldn't fret over Jenkins' status for next week's game.

  • Fullback Henry Hynoski, who missed the preseason with a knee injury, was active and started the game but did not appear to play as much as he normally does.