As a child, Rafael Nadal hit with two hands from both sides until he was told to choose one side so he would have a single-handed forehand. Although the boy did most things right-handed, he instinctively started playing tennis as a lefty.
With his talent and his tenacity, Nadal likely would have been an all-time great no matter what, but being left-handed might have given him an edge — most notably, his high bouncing serve to a right-hander’s backhand has proved especially challenging for his rival Roger Federer. A win at Roland Garros would give Nadal 21 Grand Slams, one more than Federer.