The 49ers were without three of their top playmakers for much of the matchup, with running back Christian McCaffrey (Achilles) and wide receivers Brandon Aiyuk (knee) and Deebo Samuel (illness) all sidelined by the end of the day. Their final touchdown, a sneak by Purdy, came with under two minutes to play.

The Kansas City Chiefs are the lone remaining unbeaten team in the NFL after a 28-18 win over the San Francisco 49ers at Levi's Stadium. The Chiefs defense terrorized Brock Purdy, who threw three interceptions in the game.

About 10 minutes before the Chiefs and San Francisco 49ers kicked off in California, a football game played 2,000 miles away left the Chiefs as the NFL’s only unbeaten team. Three hours later, they left California with the same distinction. The Chiefs beat the 49ers 28-18 in a Super Bowl rematch at Levi’s Stadium.

Trent Williams got tossed from the 49ers’ loss to the Chiefs early after he clocked Bryan Cook in the head late in the fourth quarter.

Chiefs safety Bryan Cook appeared to take a shot at Trent Williams, who responded by punching Cook in the back of the helmet.

With three minutes remaining in the fourth quarter, 49ers star left tackle Trent Williams was ejected after striking Chiefs defensive back Bryan Cook in the head. Cook gave Williams a shove while the lineman was down on the ground,