Unfortunately for the Chiefs, Reid’s initial assessment was correct: The team announced Sunday evening that Mahomes has a torn ACL in his left knee and will miss the remainder of the season. “Patrick and the club are currently exploring surgical options ,” the Chiefs wrote on social-media site X.

Kansas City Chiefs quarterback Patrick Mahomes suffered a torn ACL in his left knee in the Dec. 14 loss to the Los Angeles Chargers.

Reports confirmed Patrick Mahomes sustained a torn ACL in his left knee Sunday during the Chiefs' 16-13 loss to the Chargers that ended their playoff hopes. No. 15's 2025 season is now over, and he's unlikely to return until sometime deep into the 2026-27 season.

Timeline of respective superstars' knee injuries is spooky.

The Kansas City Chiefs’ season unraveled in the worst way possible on Sunday. Patrick Mahomes went down with a torn ACL late in Kansas City’s 16-13 home loss to the Chargers, and just like that, everything changed.

Patrick Mahomes II suffered a non-contact knee injury after his left knee hyperextended. It did not take long for the Chiefs to confirm the worst, as Mahomes was diagnosed with a season-ending ACL tear. Patrick Mahomes II suffered a torn ACL and is out for the season. pic.twitter.com/XQL44Rvn7G

Cameras caught the devastating reaction of Patrick Mahomes after he had to leave Sunday's game against the Chargers.

Under head coach Andy Reid, the Kansas City Chiefs have built a dynasty behind Mahomes and have appeared in five of the last six Super Bowls. Mahomes, still only 30 years old, already has three championship rings but he won’t be adding to that tally this season.