Dare I say that Klitschko lost on purpose to Fury in the last fight? The second fight was contracted at the time and if Klitschko lost, Fury would be unable to fight anyone else until Klitschko again.
Klitschko is contracted for 5 fights but there is little competition, this becomes the second bout of those 5. Klitschko may have to retire.
Further, by losing, Klitschko now has the chance to become a 3 time heavyweight champ...few have done this.
Kiltschko was undefeated over some 10 or 11 years but has lost before, so there was no 0 loss column to jeopardize.
In the first fight Klitschko barely fought and it shows in the stats.
He lost on purpose and Fury even think it's possible.