Collie, the Colts' second-year wide receiver, sustained a concussion from a helmet-to-helmet hit by Philadelphia safety Kurt Coleman in the second quarter of the Eagles' 26-24 victory over Indianapolis on Sunday, Colts coach Jim Caldwell said.
Collie lay motionless on the field for nearly 10 minutes following the play.
"He's awake, he's alert, and it's a concussion," Caldwell said. "So we wish him the very best in his recovery and I think he'll recovery quickly. He'll do OK."
Caldwell, speaking shortly after the game, said he expected Collie to accompany the Colts on the plane back to Indianapolis late Sunday night.
"You hate to see that," Colts quarterback Peyton Manning said of the play, which came with 2:33 remaining in the second quarter. "Coach Caldwell told us early on that it was a concussion, which you don't like to hear, but it is certainly better news than what everybody fears at that point. ... You hate to see that and it is tough when you lose one of your top players. Obviously our thoughts and prayers are with him."
On the play, Collie had his hands on a pass from Manning down the middle of the field, and after taking at least a step, he was hit by Coleman, whose helmet made contact with Collie's.
"I was just breaking on the ball," Coleman said. "It was almost a collision between me and (safety Quintin Mikell). I was just playing football. I am sad to say he got hurt. You never want to see that."
Coleman was asked if Collie got knocked into him.
"Truthfully, I can't say," Coleman said. "I felt like it was a bang-bang play. I kind of got a little knocked too. You probably got a better view than I did. I was just trying to make a play on the football.
"It's football. I have to erase that play and go to the next one. They were in the red zone and they were going in for the score, so I had to get back in there and move on to the next play. You have to move on, because there are a lot of plays in the game. So, you can't dwell on that one play, whether it's good or bad. You have to move to the next play and move on."
Coleman was penalized 15 yards for the hit, and there has been debate among observers about Coleman possibly being fined by the NFL office.
The league has placed a priority in recent weeks on reducing helmet-to-helmet and flagrant hits on defenseless players, but there are those who believe Collie on the play had made enough of a move after receiving the pass to not be considered defenseless.
"I think the official made the proper call," Caldwell said. "I think there was no question about that. Yeah, we just certainly hope he's OK. We just stand out and watch the doctors do their work, talk with him and those kinds of things. We're happy that he didn't have any sort of very serious, serious injury. Any kind of injury is serious, but I'm talking about one where obviously it could have been much different from the way it turned out."
Watch video of the hit that injured Austin Collie below.