Who held notable victories against the Lebanese-born Syrian-German professional boxer?
Johann Duhaupas Johann Duhaupas (born 5 February 1981) is a French professional boxer and world heavyweight title challenger. He is the current WBC Silver heavyweight champion and a former European Union heavyweight champion. Duhaupas is a pressure fighter in style, known for his stiff jab and iron chin. He holds notable victories over Manuel Charr and Robert Helenius.
Calvin Brock Calvin Vance Brock (born January 22, 1975 in Charlotte, North Carolina) is an American former professional boxer who competed from 2001 to 2007. In 2006, he won "Ring Magazine's" Knockout of the Year for his win against Zuri Lawrence and challenged for the IBF and IBO heavyweight titles. Brock was forced to retire after receiving retinal damage in his right eye following his loss to Eddie Chambers.