INDIANAPOLIS -- Colts receiver Austin Collie has left the Jacksonville game with a right knee injury early in the third quarter.

Collie was injured as he caught Andrew Luck's pass over the middle for a 6-yard again. He appeared to get hit in the head, raising immediate fears of yet another concussion. The crowd gasped when Collie stayed on the ground.

The former Brigham Young star has had at least three concussions, and possibly a fourth, over the past two seasons and had not played since sustaining his most recent concussion Aug. 19 at Pittsburgh.

But those gasps changed to cheers when team doctors helped the receiver off the field as he put no weight on his right leg.

It was Collie's only catch Sunday. He was not expected to return.