BERLIN (AP) -- Wladimir Klitschko will defend his WBA, IBF and WBO heavyweight titles against French challenger Jean-Marc Mormeck in Duesseldorf on Dec. 10.
Klitschko said on his website Thursday that "Mormeck is one of the most experienced fighters I have ever faced."
The 39-year-old Mormeck is a former WBC and WBA unified cruiserweight champion. He has won all his fights since moving to the heavyweight division in 2009. He has a career record of 36 wins (22 KOs) and four defeats.
It will be Klitschko's 20th world championship fight and the 35-year-old Ukrainian's first appearance since beating British boxer David Haye in July. His record is 56-3 with 49 KOs.