Ruslan Chagaev is the new opponent of IBF, WBO and IBO World Heavyweight Champion Wladimir Klitschko on June 20 in the Veltins-Arena in Gelsenkirchen, Germany.

WBA Champion Chagaev was engaged after original fighter David Haye had pulled out due to an injury on Wednesday. The winner of the bout will receive the vacant Ring Magazine Heavyweight Championship Belt which was held by Vitali Klitschko until he retired in 2005.

“It is sad that David cannot compete. However, I am looking into the future and forward to fighting against Ruslan. He is WBA Champion, very experienced and a tough challenger. For my preparation, I have to change my sparring partner from orthodox to southpaw,