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.

Patrick Mahomes overcame two interceptions to deliver a few big plays with his feet and the Kansas City Chiefs remained the league’s only undefeated team after beating the San Francisco 49ers 28-18 in a Super Bowl rematch.

The Kansas City Chiefs have gotten off to a perfect start to their season, winning their first five games for the fifth time in franchise history. With their bye week now behind th