Shannon Briggs sure made a scene Tuesday, crashing the press conference of the upcoming heavyweight boxing title fight between WladimirKlitschko and Alex Leapai all the way in Dusseldorf, Germany. The Brooklyn-born boxer challenged Klitschko to a fight and all hell broke loose. The wild incident, in which Briggs had to be held back, was just one of the sweet science's many off-the-wall press conferences through the years. Click on as BET.com takes a look at some of the over the top moments at boxing pressers. Ref's warning — You many need a standing-eight count afterwards!