'Oh my god': America in meltdown over 'disgusting' NFL moment

Kansas City Chiefs quarterback Patrick Mahomes, the reigning NFL Most Valuable Player, left Thursday night's game against the Broncos in Denver after suffering what appeared to be a right knee injury on a quarterback sneak.

Shortly after leaving the game, Fox's Erin Andrews announced the Chiefs ruled Mahomes out for the game after the 24-year-old spent only a couple of minutes in the X-ray room.

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Patrick Mahomes suffered a horror injury. Image: NFL

With his team up 13-6 and facing a fourth-and-1 at the Denver 5-yard line with 10 minutes left in the second quarter, Mahomes ran a sneak to convert the first down.

But Mahomes remained on the ground, and when trainers came out, they appeared to be straightening his right knee.

Patrick Mahomes was assisted off the field. (Photo by Matthew Stockman/Getty Images)

Fans were left in shock after a trainer appeared to pop Mahomes’ knee cap back in place.

Disaster for Chiefs

Mahomes was able to walk off the field with assistance, then once he was off the field, was able to walk without assistance down the tunnel toward the locker room.

Mahomes entered the game playing on a tender left ankle he sprained in the season opener and aggravated several times, including Sunday in a home loss to the Houston Texans.

Mahomes began the night leading the NFL with 2,104 passing yards.