Former UFC champion believes Joshua can beat Ngannou under MMA rules

"Francis is not a world-class kickboxer. If we look at all his fights, he had a few wins by holds and he was moving someone to the parterre. But if we compare him to someone like Anthony Joshua, who is a highly skilled athlete..... Give me Anthony for six months, we're going to train his takedown defense, his leg kicks, as well as his boxing. If Anthony can master all of that, then he will really have a chance of beating Francis in the octagon," Give me Sport quoted Johnson as saying.