All of bodybuilder's ex-husbands who are Whyte, Nistor, Majidov, Price, Ruiz and Usyk beat him again if they fight again.
Nistor is past his prime and hasn't really done anything impressive as a pro. He was on the verge of being brutally KOed in his last fight and has generally just looked very slow, flat-footed and lacking in fire compared to his WSB iteration. Anyone who picks him to beat Joshua now is either having a wind-up or has no respect for Joshua whatsoever.