Derek Carr is recovering well from shoulder and rib injuries suffered against the Lions, but his concussion could keep him out of Week 14.

New Orleans Saints quarterback Derek Carr is in the 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.

Dennis Allen shared an injury update on Saints quarterback Derek Carr, saying Jameis Winston will start in Week 14 if Carr can’t play:

New Orleans Saints quarterback Derek Carr left in the fourth quarter of their 33-28 loss to the Detroit Lions after being hit hard by Bruce Irvin in the backfield. Carr was slow to get up and eventually helped off the field by trainers, who were holding the veteran's right arm. Jameis Winston replaced Carr under center.

"He's being evaluated," Coach Dennis Allen said Monday. "He's in the concussion protocol but he's also being evaluated for a rib injury. We don't have all of the results back on that, but the shoulder seemed like it came out fine. We'll evaluate him as we go throughout the week, see what his availability will be."

New Orleans Saints quarterback Derek Carr is practicing on a limited basis while working through the NFL’s concussion protocol