Browns head coach Pat Shurmur said McCoy didn't have concussion symptoms until after the game, although he suffered the injury in the fourth quarter.
"It was a pass play, he scrambled and got hit by (James) Harrison," Shurmur said. "On the field, he actually was talking about his hand. We go through the strict protocol to evaluate whether there is concussion like symptoms. Seneca (Wallace) was in the game for two plays. I was told that Colt could go back in the game. He came up right next to me and said, 'I'm ready to roll,' so he went back in."
Shurmur said he wasn't made aware of McCoy's concussion-like symptoms until the team was leaving the locker room following the game. The coach also said McCoy suffered a bruised left hand.
McCoy went 18-for-35 with 209 yards and two picks in the defeat. His father was critical of the Browns, who brought back in McCoy after missing two plays. Later, he threw an interception in the end zone.
"I can understand a dad's feeling in this matter, I'm the father of a son who plays quarterback," Shurmur said. "I get it and I wouldn't (want) my son in harm's way if he was showing those symptoms. I understand that. We were not aware of that at the time. As far as us evaluating him, we didn't see that. I understand the thoughts. I understand it extremely well. The McCoy's are terrific people who love their son and want the best for him. I get that."