Chiefs kicker Harrison Butker drilled a 43-yard field goal with 8 seconds left in his first career game, atoning for an earlier miss and helping Kansas City to a 29-20 victory over the Washington Redskins on Monday night.
Signed off the Carolina practice squad earlier in the week, Butker missed a 46-yarder in the first half before hitting three attempts in the second. The first tied the score 17-all, the next gave the Chiefs the lead and the last made Kansas City (4-0) the league's only undefeated team.
The Chiefs put an exclamation point on the win when linebacker Justin Houston picked up a fumble as the Redskins (3-2) were trying to keep the game alive and returned it for a game-ending touchdown.
The last time there was only one unbeaten team through the first four weeks of the season was 2010, when the Chiefs were the final team standing. They went on to win the AFC West.
Alex Smith threw for 293 yards with touchdowns on the ground and through the air, and it was his 37-yard strike to Albert Wilson on a broken play that set up Butker's go-ahead kick.
Travis Kelce hauled in seven catches for 111 yards and a touchdown, while Chiefs rookie Kareem Hunt pounded away 21 times for 101 yards against the Redskins' stout defensive front.
Kirk Cousins had 220 yards passing and two touchdowns for Washington, but his throw to the end zone with 50 seconds left was dropped by Josh Doctson and forced the Redskins to kick a field goal.