Patrick Mahomes‘ season is over after a devastating knee injury took him out of Sunday’s game … with the team just announcing he’s torn his ACL.

The Kansas City Chiefs quarterback led his squad against the Los Angeles Chargers … and, down 16-13 later in the fourth quarter, Mahomes rolled out to the right — looking to make a play with his legs.

Watch at your own risk … Mahomes throws the ball away to avoid a tackle for loss — but his left knee lands awkwardly and gives out.

A couple trainers helped Mahomes off the field for evaluation … and, they eventually walked him to the locker room — with the 2-time NFL MVP putting basically no weight on the leg.

To make matters worse … Mahomes’ replacement, Gardner Minshew, came in and throw a game-ending interception deep in Chargers territory. The loss ended the Chiefs playoff hopes for the season.

Chiefs fans’ worst fears were realized later in the evening … when the team announced Mahomes had torn his ACL on the play. The post on the official social media account states, “Patrick and the club are currently exploring surgical options.”