Then there's tennis ace Rafael Nadal, winner of 14 Grand Slams but very much the rookie poker player around Monaco.

A Natural On the Felt. Despite his lack of ambition to master the game, Carlsen has demonstrated an impressive aptitude and understanding of poker. During his appearance on Hustler Casino Live last month, Carlsen made a heroic call with just bottom pair against content creator Nick Austin to win a pot of $13,775.