Derek Carr injured on a big hit by Lions pass rusher Bruce Irvin

Derek Carr was injured on a big hit by Lions pass rusher Bruce Irvin, with Jameis Winston entering to replace him:

New Orleans Saints quarterback Derek Carr was rocked on a big hit from Detroit Lions defender Bruce Irvin, and he had to leave the game with assistance from the training staff. Irvin was fouled for roughing the passer on the play. A trainer’s cart initially came out to ferry Carr to the locker room but he waved it off to leave under his own power.

It’s the third time this year Carr has left the game with an injury; he was knocked out of losses to the Green Bay Packers and Minnesota Vikings with injuries to his throwing shoulder and a concussion. The nature of this injury and whether he’ll be able to return late in the fourth quarter is unclear. Jameis Winston is filling in for him. Stay tuned.

Update: The Saints announced that Carr was doubtful to return after entering concussion protocol and receiving treatment for back and shoulder injuries.

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