New Orleans Saints quarterback Derek Carr is in concussion protocol after sustaining his second concussion in three weeks, according to Saints coach Dennis Allen. Carr left Sunday's game against the Detroit Lions and the Saints' Week 10 game against the Minnesota Vikings to go into the concussion protocol but sustained other injuries in both of those games as well.

What's the latest on Derek Carr? The New Orleans Saints quarterback was rocked on a big hit from his former teammate Bruce Irvin during Sunday's loss to the Detroit Lions, exiting the game with what was described as back and shoulder injuries,

Most players who have been through the concussion protocol this season have not played that same week. What complicates Carr's case this week is it's his second concussion in less than a month. He suffered a concussion on Nov. 12 against the Minnesota Vikings.

The boos seemed to rain down on Derek Carr until Lions defensive tackle Bruce Irvin crashed down hard on top of the the Saints quarterback with a little more than 10 minutes left in New Orleans’ 33-28 loss to Detroit.

Derek Carr has a concussion for the second time in three games, but New Orleans Saints coach Dennis Allen said Monday it’s “too early” to say if that will prevent

New Orleans Saints starting quarterback injured during the Lions at Saints game. New Orleans Saints starting quarterback Derek Carr is being evaluated for a concussion and shoulder injury after the personal foul hit by Lions defender Bruce Irvin. His return is doubtful as he was taken into the Saints' locker room.

New Orleans quarterback Derek Carr (concussion protocol, shoulder, back) exited Sunday's Week 13 game against the Detroit Lions.

Derek Carr was banged up on Sunday. The New Orleans Saints quarterback took a big hit from Detroit Lions linebacker Bruce Irvin that drew a foul, but the damage was done. After receiving assistant from the Saints medical staff, Carr left the field and didn’t return.

For the second time this season, Derek Carr was forced to exit a game with an injury which has landed him in concussion protocol. The Saints’ starting quarterback is thus in danger of missing game action for the first time in his debut New Orleans campaign, but no firm decisions have been made yet on that front.