Entering Sunday’s Week 9 tilt between the Buffalo Bills and Kansas City Chiefs, there were many NFL observers who thought Kansas City’s high-octane offense would overwhelm Buffalo’s banged up defense, and that the Chiefs were the better team than the Bills.

The Kansas City Chiefs were upended by the Buffalo Bills in Week 9, with their offense struggling uncharacteristically in the process.

The Kansas City Chiefs face the Buffalo Bills Sunday in a potential AFC Championship Game preview at Highmark Stadium in Orchard Park, New York.

The Kansas City Chiefs (5-3) and the Buffalo Bills (5-2) are set to add another chapter to the NFL's best rivalry over the last decade.

This article was originally published on www.si.com/nfl/bills/onsi as Updated AFC playoff picture after Buffalo Bills-Chiefs Week 9 thriller. The Buffalo Bills had a statement win on Sunday, knocking off the Kansas City Chiefs 28-21 in Week 9.

ORCHARD PARK - Fifty weeks ago, the Kansas City Chiefs came into Highmark Stadium with a perfect 9-0 record, and the Buffalo Bills ended their bid for perfection with a thrilling 30-21 victory. That was the day Josh Allen’s league MVP candidacy took full ...

Despite their team’s longstanding rivalry, Allen seemed to be inspired by Kelce, who always remembers to make a nod to his fiancée, Taylor Swift.

Sean McDermott delivered some good news as he met the media the day following the Buffalo Bills’ significant Week 9 win over the Kansas City Chiefs. The Bills w