Trent Williams punched Bryan Cook, got ejected, and signed autograph on his way out [VIDEO]

Trent Williams punched a Chiefs player in the helmet, and signed autographs on his way out after being ejected.

Late in the fourth quarter of the highly anticipated matchup between the Kansas City Chiefs and San Francisco 49ers, Niners star left tackle Trent Williams was ejected for punching Chiefs’ safety Bryan Cook in the aftermath of a skirmish at the end of a play.

Trent Williams has been ejected after this. pic.twitter.com/CDBu1hRUeu