Andrew Golota was damn near shameless with the way he would foul people. Especially if you were a big black guy named....
Rocky Marciano. His fouling was constant and consistant. Blantant fouls whether it was hitting low, hitting on the break or after the bell. Rock always said they were unintentional and maybe they were but to the guy getting belted it probably didnt matter. Dempsey as well. Zivic was dirty in a crafty way. Using the laces he tore up Armstrong`s eyes. He even put a young Sugar Ray through a lesson in the fine art of butting yourself.
Nino Benvenuti, Not intentionally dirty,, But when things didn't go his way, a) he used his elbows b) punched behind the head c) punched on breaks d) punched after the bell
Let us not forget Marvin Johnson; literally the most dirty fighter we have known. Johnson would not bath or shower from the moment he began training for a fight, until after the match had finished.
Fritzie Zivic was a master, Esubio Pedroza, Larry Holmes(thumbs), Lennox Lewis (hitting&Holding,Headbutts), Evander Holyfield ( head butting) Sam Peter(hitting behind the head
The Masters(guys who did it, made it into a science and got away with it) : Fritzie Zivic and Sandy Saddler The guys who did it, got caught often and just didn't give a damn: Mysterious Billy Smith Chuck Wiggins Kid Norfolk
jc chavez low blows, mayweather elbows, golota low blows. tapia, if u fought dirty w tapia he would come back twice as dirty!!! past his prime tyson was downright evil!