49ers star sent off for PUNCHING Chiefs player in stunning outburst

San Francisco 49ers offensive lineman Trent Williams was ejected from his team's game against the Kansas City Chiefs because he hit opponent Bryan Cook in the head with a hard blow at the end of the game.

It was a frustrating afternoon for the 49ers in a rematch of this year's Super Bowl, as San Francisco's offense stalled against the Chiefs with just one touchdown a day before the game's final moments.

With just over two minutes left in the game, a prone Williams was hit in the head by Chiefs safety Bryan Cook. Williams stood up and delivered a much more barbaric blow to a helmeted chef.

Williams was given an unnecessary roughness penalty before being sent off.

Fox explained on its broadcast that Williams initially refused to leave the field because Cook had not also been kicked out of the championship rematch.

Trent Williams hit Bryan Cook in the head in the final minutes of the 49ers-Chiefs

As with many previous incidents in the NFL, it was the player who retaliated, not the one who incited it, who received the harsher punishment.

After hitting Cook, the Chiefs linebacker kicked Williams in the face and the two exchanged harsh words but no punches.

More will follow.