Wladimir Klitschko , who holds the WBO , IBF and IBO belts , is fighting Briton Dereck Chisora on April 30 .
Wladimir Klitschko , who holds the WBO , IBF and IBO belts , said he expected to face WBA champion David Haye on July 2 .
Wladimir Klitschko , who holds the WBO , IBF and IBO belts , is fighting Briton Dereck Chisora on April 30 and said he expected to face WBA champion David Haye on July 2 .