Black High School Football Player

A black high school football player in Moline, Illinois was forced to sit in a locker stuffed with banana peels -- while a fellow player threatened to break both of his knees if he refused.

The incident was captured on video and published on social media platforms -- and now, the cops are involved.

The 11-second video was reportedly shot on Thursday night -- but in less than 24 hours, the footage had already made its way to the Moline Police Dept.

And, when the team returned from an away game on Friday evening, the cops were waiting at Moline High School to interview everyone who had a role in the disturbing incident.

"On the evening of April 9, 2021 the Moline Police Department became aware of…