NFL fans were left in stitches after a bizarre video of Las Vegas Raiders star pass rusher warming up before a game Maxx Crosby went viral.

Crosby and the Raiders hosted the Los Angeles Chargers for their Week 2 contest on Monday Night Football.

But before the game, Crosby was seen doing a strange warmup on the sidelines and in view of the ESPN cameras.

Crosby was seen off to the right side in an ESPN triple-box as he and his teammates prepped for the game.

He was seen sitting down on the ground before he laid completely out on his back and started hip-thrusting into the air.

Fans reacted with laughter on social media – with many wondering exactly what benefit he could get from that ‘stretch’.

NFL fans went wild after watching Raiders pass rusher Maxx Crosby hip-thrusting in warmups

Crosby’s stretches didn’t lead to much success as he failed to record a single quarterback hit

‘I’m f***ing crying bro,’ said one user on X.

Another commented, ‘That was insane’. One fan remarked, ‘Ayo wtf was Maxx Crosby doing there???’

‘Not a serious organization,’ said one Chargers fan. A Raiders fan remarked, ‘This is why we losing.’

Another fan said, ‘Get maxx Crosby freaky a** off my screen.’

Whatever exercises Crosby did, they didn’t help his in-game performance. The star pass rusher didn’t record a single quarterback hit in the Raiders’ 20-9 loss to their AFC West rivals.

He did record one tackle for a loss and five total tackles in the game where Raiders quarterback Geno Smith tossed three interceptions.