'Scandal' Star Gladiators Will Sucker Punch You ... Allegedly

3/25/2014 3:00 PM PDT BY TMZ STAFF

On "Scandal" Columbus Short tries to clean up messes -- but he's in the middle of a huge one in real life now ... after he allegedly "handled" a trash talker by knocking him the hell out!

Oh, and Columbus supposedly hit the guy from behind. Yep ... total cheap shot.