Kansas City Chiefs quarterback Patrick Mahomes suffered a left knee injury late in the Chiefs' game against the Los Angeles Chargers on Dec. 14 at Arrowhead Stadium. Mahomes' left knee flexed awkwardly after a hit on a drive late in the fourth quarter.

The Los Angeles Chargers, led by quarterback Justin Herbert, face the Kansas City Chiefs, led by quarterback Patrick Mahomes, on Sunday, Dec. 14, 2025 at Arrowhead Stadium in Kansas City, Mo.

The NFL season continues in Week 15 when the Kansas City Chiefs host the Los Angeles Chargers on Sunday. Start time, how to watch, stream and NFL TV schedule.

Taylor Swift capped off a big weekend of celebrations by supporting her fiancé, Travis Kelce, at his Kansas City Chiefs game. The pop superstar, 36, cheered on Kelce, also 36, and his teammates as they played the Los Angeles Chargers at Arrowhead Stadium in Kansas City,

"Injury Update on QB Patrick Mahomes: An MRI has confirmed that Chiefs QB Patrick Mahomes sustained a torn ACL in his left knee in today’s game,“ the Chiefs posted on X. ”Patrick and the club are currently exploring surgical options."

The result: a 16-13 loss to the Los Angeles Chargers that ends the Chiefs’ hopes of making the NFL playoffs. The Chargers became the first AFC West to sweep the Chiefs (6-8) since the Denver Broncos in 2014. Here’s our weekly analysis and grades for the Chiefs: