Denver Broncos quarterback Russell Wilson is in concussion protocol after he was forced to exit Sunday's 34-28 loss to the Kansas City Chiefs in the fourth quarter.

In one of his best statistical games of the season, Wilson threw three touchdowns for the first time since pulling on a Broncos jersey, clawing back from a 27-0 deficit to head into the fourth quarter trailing 34-21.

The Broncos scored another touchdown to begin the fourth period, but while scrambling down to the two-yard line, Wilson was tackled and violently slammed his head into the turf.

He was visibly wobbled when trying to return to his feet, and was promptly taken out of the game and placed in the concussion protocol.

Backup quarterback Brett Rypien finished that drive off with a touchdown, but ended the game with an interception when he had the chance to produce a go-ahead drive with under five minutes remaining.

The loss means the Broncos fell to 3-10 for the season, and the concussion protocol may keep Wilson out next week as well when the Arizona Cardinals roll into town.