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Chiefs vs. Bills score: Buffalo keeps playoff hopes alive, upsets Patrick Mahomes in wild finish at Arrowhead

The Buffalo Bills continued their surge into playoff contention with a 20-17 win over the Kansas City Chiefs at Arrowhead Stadium to move to 7-6 on the season. 

This game between these two AFC rivals came down to the final possession. After a Harrison Butker 27-yard field goal knotted the game at 17 at the start of the fourth quarter, this contest was determined on the final two drives. Buffalo marched 48 yards into field goal range where Tyler Bass booted a 39-yarder to give the Bills the go-ahead lead with under two minutes remaining. Meanwhile, the defense held up its end of the bargain as it kept Patrick Mahomes and the K.C. offense at bay, forcing a turnover on downs and the win. 

That said, the Chiefs did end up scoring what could have been the game-winning touchdown at the 1:12 mark of the fourth quarter as Travis Kelce caught a 25-yard pass and then lateraled the ball to Kadarius Toney, who took it the final 24 yards for the score. However, the officials deemed that Toney lined up offsides erasing what would have been a game-altering play. 

This game began with a 14-0 run by the Bills as the Chiefs struggled to find a rhythm offensively as Mahomes had a pass tipped at the line of scrimmage and picked off by Bills defender A.J. Epenesa on the opening drives and the Chiefs then punted on their next three possessions while Buffalo went on a 14-0 run. K.C. then started to show signs of life in the second half, scoring 10 straight to tie the game at 17 before Buffalo ultimately made its final stand en route to the win. 

Josh Allen completed 23 of his 42 passes for 233 yards, a touchdown, and an interception. The quarterback also rushed for 32 yards and a score. James Cook was his go-to weapon as the back totaled 141 yards from scrimmage and a touchdown. On the Chiefs side, Mahomes was 25 of 43 passing for 271 yards, a touchdown, and an interception. Rashee Rice caught seven of his team-high 10 targets for 72 yards and a touchdown.

For more on how this game unfolded, check out our main takeaways below.

Why the Bills won

The Bills got off to a strong start in this game on both sides of the ball. A.J. Epenesa forced a Mahomes turnover on the opening drive and the offense was eventually able to go on a 14-0 run in the first half. Overall, Buffalo couldn't get much production from Stefon Diggs (four catches for 24 yards) and Gabe Davis (zero catches), which meant Josh Allen had to find different outlets on offense. James Cook proved to be an early option as he caught all five of his first-half targets for 83 yards and a touchdown, helping Buffalo build its lead. 

While the offense settled down as this game went along, the defensive pressure from the Bills ramped up. The offense sort of melted down on its fourth drive of the second half. After Allen converted a third-and-9 on a pass to Latavius Murray, back-to-back offensive holding penalties and a third-down sack created a demoralizing fourth-and-38 situation from the Buffalo 19-yard line. Instead of the Chiefs being able to use that stop to create more momentum in their comeback hope, the Bills defense forced a quick three-and-out that saw Mahomes on the field for less than a minute. The ensuing Buffalo drive proved to be the game-winning field goal.

Why the Chiefs lost

Kansas City dug itself into a hole early in this game as the offense continues to be sluggish. The unit began the day with an interception and three punts, while Buffalo went on a 14-0 run.

Despite all that, the Chiefs had a victory -- or at least a late lead -- in their hands, but a penalty by Kadarius Toney erased what would have been a monumental touchdown (more on that below). Throughout this game, Kansas City's receivers seemed to come up short, which has been a storyline that's surrounded the defending champions all season. Even Rashee Rice -- who has been a lone bright spot at that position -- fumbled in the final minute of the third quarter, which took away an opportunity to claw back into the game. 

That lack of a true No. 2 weapon allows defenses to completely blanket Travis Kelce and leaves Mahomes in a frustrating position. 

Turning point

For a minute, it looked like the Chiefs were going to pull together another miraculous come-from-behind win with one of the best plays of the season. Mahomes completed a deep pass to Travis Kelce, who then lateraled the ball back to Kadarius Toney and the wideout ran it 24 yards for the touchdown. But, Toney lined up offsides, which led to the play being nullified and pushing Kansas City back 5 yards.

That infraction created a second-and-15 situation from the Kansas City 46-yard line. Mahomes threw three straight incompletions after that play, which turned the ball over on downs and gave Buffalo the victory.

Play of the game

This 25-yard catch by Deonte Harty was a sneaky pivotal moment in the game. Buffalo was faced with a third-and-6 situation and possibly looking at punting for the fourth consecutive drive. On a night when the Bills struggled to get much production from its wide receivers, Josh Allen connected with Harty to move the chains, flipped the field, and ultimately helped lead to what proved to be the game-winning field goal a few plays later.

What's next

From here, the Chiefs will travel to New England to face the Patriots next Sunday. As for Buffalo, they'll head back to Highmark Stadium and gear up for another heavyweight battle with the Dallas Cowboys coming to town. 

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Live updates
 
 

That's Rice's sixth receiving touchdown this season and it cuts the Bills lead to just a field goal. Rice has emerged over the last few weeks, which is a huge development for Kansas City. 

 
 

Tyler Bass connects on the chip-shot field goal to make it a 17-7 lead for Buffalo. All in all not a terrible stand by Kansas City. The Bills were ripping off big chunks of yards, but held them to a field goal after reaching the red zone. 

 

What a brutal penalty by Kansas City. Turns a third-and-long into third-and-manageable. 

 

The Bills have four plays of 10 or more yards on this drive. 

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James Cook is averaging 5.8 yards per carry and 16.6 yards per catch. 

 

This is Josh Allen's eighth game with a passing touchdown, a rushing touchdown, and an interception this season, the most in the NFL. It's the second time he's accomplished this by halftime this season. 

 

I think I would have attempted the field goal in that spot. Buffalo is getting the ball to begin the third quarter, so tacking on possibly 10 straight points would've been huge to keep the Bills at bay. 

 

That's a puzzling play-call there by the Bills. They needed a WR to break quickly and took too long to develop, which led to Allen simply throwing it in the turf. 

 
 
 

And that's nine straight games that Josh Allen has thrown an interception. 

 
 

Things are getting chippy after that punt by Kansas City. Plenty of Bills and Chiefs players needed to be separated after a quick shoving match.

 

Just a brutal drop by Toney on that sideline throw from Mahomes. 

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Josh Allen just gave a handful of Chiefs defenders a piggyback ride into the end zone. Buffalo breaks open a 14-0 lead to begin this game. 

 
 

Sean McDermott's gamble pays off thanks to some strong poised by Josh Allen. Everything was covered and somehow found Dalton Kincaid on a sidearm throw to move the chains. 

 

James Cook had a monster first quarter as a pass catcher. He caught all three of his targets for 64 yards and a touchdown. 

 

Dangerous throw by Josh Allen. The ball got into traffic and hit the hands of a Chiefs defender, but the ball fell incomplete. 

 
 

The Bills strike first with a 25-yard catch and run by James Cook. 

 

CEH is seeing plenty of early work filling in for Isiah Pacheco. He already has five touches for 30 yards from scrimmage. 

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Really nice stand by the Chiefs defense. After the Mahomes INT, the unit forces a Buffalo punt after just four plays. 

 
 

"The Bills come off the bye, while the Chiefs come off a tough loss to the Packers on the road. The Bills need this in the worst way for their playoff hopes, while the Chiefs need it for seeding. This will be a high-scoring game, which will be won by the Chiefs late. It will be a classic." -- CBS Sports Senior NFL Analyst Pete Prisco on why he likes the Chiefs to edge out the Bills, 34-33. 

 

Patrick Mahomes is completing 67.8% of his passes coming into Week 14. If that holds, that'd mark a career-high for the Chiefs signal-caller.

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