
Had Anthony Joshua done his homework, he would have known fully well that Deontay had indeed challenged Wladimir for a title unification bout as early as 2015 after winning the WBC from Stiverne but Klitschko wasn't interested.
It was an obvious duck by Klitschko. His rationale at the time is that Wilder had to face much stiffer challengers, in order to be considered a worthy challenger for him and to unify the titles. He ducked him just like Joshua is ducking him now.
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