Rafael Nadal

So far, he's won 47 career titles along with $41,745,602 in prize money. He recently clinched his sixth French Open title and equalled Bjorn Borg's long-standing record. And now, it's time for Rafa to attempt a third win in four years at the All England Club. 

Of late, Nadal hasn't exactly been at his best even though he won the French Open. Besides, his No.1 ranking was hijacked by a relentless Novak Djokovic. Judging by how heated their rivalry has become, his performance is bound to be one of the most interesting things to watch at this year's Wimbledon.