FORMER NFL star Mark Sanchez has been captured on video bloodied and stumbling through the streets after he was stabbed in an alleyway brawl.

The 38-year-old quarterback-turned commentator has been arrested and accused of starting an unprovoked fight with a 69-year-old truck driver outside an Indiana bar early Sunday morning.

Surveillance video released by the New York Post shows Sanchez clutching a dark patch on his torso and walking on the Indianapolis street at 12:30 am.

The footage was revealed after a bartender who was working near the scuffle said that a mangled Sanchez pounded on his pub's window and begged him for help after the attack.

Workers rushed to bring the ex-player inside and called 911 before holding rags over his gushing wounds and trying to ask him what happened

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