The Jacksonville Jaguars were unable to determine Bernard Pierce suffered a concussion in Week 5.

Pierce could have very well have been experiencing concussion symptoms during the play in which he blocked a Bucs player instead of making the tackle in punt coverage.

Jaguars medical personnel were unaware that he was experiencing concussion symptoms until Pierce told them about an hour after the game.

"There was no in-game information provided to the team that indicated these symptoms," Jaguars spokesman Tad Dickman said.

After being examined, Pierce was placed in the NFL's concussion protocol. The Jaguars studied the game film on Monday and were unable to determine if Pierce suffered the concussion on a single play or if it was the result of multiple blows to the head.