He has taken flush shots from Wilder in the 2 fights. He has taken punches from Klitshko, Wallin, Chisora and many other fighters. He has gotten up from knock downs and won fights. Certainly don't know where people get the idea his chin is bad.
his chin is still bad. otto wallin had him holding the ropes in rd 12. problem is wilder telegraphs his punches and fury saw everything.