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Eric Esch, also known as Butterbean, has won four World Championships. He is a former professional boxer and mixed martial artist who competed in the heavyweight division. Esch won the World Boxing Federation (WBF) Heavyweight Championship in 1997, the International Boxing Association (IBA) Heavyweight Championship in 1998, the World Boxing Council (WBC) Fecarbox Heavyweight Championship in 1999, and the World Boxing Organization (WBO) NABO Heavyweight Championship in 2000.