Challenges WBO/IBF Heavyweight Champion Wladimir Klitschko in Dusseldorf, Germany on Saturday, March 20th Six Questions With the #1-rated WBO Heavyweight Contender. Los Angeles, CA (March 11, 2010) – Top American heavyweight “Fast Eddie” Chambers (35-1, 18 KOs) is set to take on Ukrainian giant and WBO/IBF World Heavyweight Champion Wladimir “Dr. Steelhammer” Klitschko (53-3, 47…