Adrien Broner was just arrested and taken away by cops at the Deontay Wilder and Tyson Fury weigh-in ... and TMZ Sports has the video.
30-year-old Broner -- who is no stranger to run-ins with the law -- was cuffed and hauled away by Las Vegas Metro police officers on Friday after Broner refused to leave the MGM Grand Garden.
Here's the deal ... back in November, AB was twice told he was NOT allowed to visit the property (it's unclear exactly why). Regardless of the warning, Broner showed up at the weigh-in.