Brandon Marshall -- Ex-NFL WR Has My Back ... In Nightclub Attack Case

NY Jets star Brandon Marshall is counting on one of his ex-college teammates (turned NFL player) to go to bat for him in a lawsuit stemming over an alleged attack outside of an NYC club ... TMZ Sports has learned.

FYI -- Marshall is being sued by a woman who claims the WR punched her in the face during a violent situation outside of a nightclub back in 2012.

The NYPD investigated the incident at the time, but Marshall was never charged with a crime. Brandon has always maintained he did nothing wrong.

But as the civil case continues to move forward, Marshall has listed ex-NFL wide receiver Mike Sims-Walker as a witness who will help prove his innocence ... according to court docs obtained by TMZ Sports.

Sims-Walker and Marshall go way back ... they were teammates (and both WRs) at the University of Central Florida back in the day.

But the accuser has an ex-NFL witness of her own -- Raymond Edwards, a defensive end who last played with the Falcons in 2012.

It's unclear what Edwards and Sims-Walker are expected to contribute as far as their testimony goes -- but the case is expected to move forward later this year.