Ruiz may look like he'd gas out running for a bus, but on the only occasion he went the 12-round distance, he lasted the course comfortably. Not only that but he gave then-WBO champion Joseph Parker all the trouble he could handle, only to drop a contentious decision in 2016, still his only defeat. Ruiz Jr has fast hands, good mobility and is an intelligent fighter with an underrated punch. Add that he is coming off a good win over Alexander Dimitrenko less than two weeks ago and you have a threat to Joshua that outweighs (sorry, couldn't help it) any concerns about what he looks like.

Ruiz is currently available at 12/1 outright and 20/1 by decision. I'm not going to go out on a limb and predict the upset but those odds do not reflect Ruiz Jr's actual chances. It's not hard to envisage his winning rounds against a Joshua, who while athletic and smart, can be a little predictable. Winning the fight itself, navigating 12 rounds at a good pace without getting taken out, is more of a reach, but Miller was a best-priced 6/1 outright and there is little to suggest he would have given Joshua a tougher challenge. And he's far heavier than Ruiz!