5. Eben Etzebeth – South Africa
At 6ft 8 and 280lbs, Eben Etzebeth must scare the sh*t out of his own family. This rugby player is still just 26, but is such a tank he had to have custom made dumbbells (source) specially made for him, because the 65kg (145lb) ones were, and I quote, ‘too light’.