NFL · San Francisco 49ers · 07:05 ET · via @RapSheet

Terry McLaurin's Air Cast Nightmare Spells Disaster for the Commanders

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Ian Rapoport reported McLaurin is feared to have suffered a serious and season-ending knee injury.

Seeing the medical staff break out the air cast on a football field is the universal sign to stop whatever you are doing and assume the absolute worst. It is the NFL equivalent of a check-engine light that immediately starts smoking.

According to Ian Rapoport, wide receiver McLaurin is feared to have suffered a serious, season-ending knee injury during Monday night's 23-17 loss to the . He is undergoing an MRI today to confirm the damage, but nobody in the building is holding their breath.

The play itself was a brutal watch. In the first quarter, McLaurin got tangled up with 49ers cornerback Deommodore Lenoir, and his left knee simply buckled as he tried to break free. Non-contact joint injuries are the ultimate nightmare fuel for a skill player, and the immediate reaction from teammates kneeling on the turf told the whole story.

This is a devastating blow for a guy who cannot seem to catch a break. McLaurin had posted 15 catches for 230 yards and a touchdown so far this season, but his lower body has been under constant siege. He already missed a game earlier this year with a hamstring strain and sat out seven games last season dealing with quad and core muscle issues.

From a betting and fantasy perspective, 's offensive outlook just drove off a cliff. You cannot just scheme your way out of losing a WR1 who dictates coverage every time he lines up. Sportsbooks are going to aggressively downgrade the Commanders' team totals and passing props until someone else proves they can actually catch a football in traffic.

Now, just has to wait for the MRI machine to make it official. Assuming the worst-case scenario holds true, the are staring down the rest of the schedule with a massive void on the perimeter and zero easy answers on the depth chart.