San Francisco 49ers' offensive tackle Trent Williams was ejected during a chippy Week 7 game against the Kansas City Chiefs for punching Chiefs safety Bryan Cook. The altercation occurred late in the fourth quarter when Cook first delivered a blow to Williams' head, prompting Williams to retaliate with a stronger punch. Despite the involvement of the NFL’s video office, only Williams was penalized and ejected, while Cook did not receive a flag. The incident marked another volatile moment in the already tense game, which saw prior penalties for other players' unsportsmanlike behavior. Williams' ejection adds to his history of such incidents, having thrown a punch in a previous season without being ejected. Both Williams and Cook face potential suspensions for the upcoming games.