9. Andy Ruiz
On the face of it, Ruiz doesn’t look like an elite athlete. This roly-poly boxer is one larger-than-life figure. However, he is one of the most talented heavyweights on the planet. Furthermore, he is deceptively explosive and fast. Anthony Joshua found this out to his cost because Ruiz knocked him out in 2019. He became a four-belt world champion and also the first Mexican heavyweight champion in history.

There is a misconception that boxers must have incredible physiques, but this isn’t true. Too much muscle can be harmful because it uses more oxygen. Most heavyweights are not built like bodybuilders, but Ruiz takes this to the extreme. Meanwhile, he has an addiction to Snickers’ chocolate bars. He lost his titles after he went off the rails and put on more weight.