Michael Phelps watch out as Rafael Nadal hints at potential Olympic Games swimming entry with latest video

Rafael Nadal continues to prepare for his return to the tennis courts after his untimely injury in Brisbane and we have recently seen him diving into a pool.

He has posted a video on his Instagram account in which he can be seen diving from side to side of the pool and holding 40 seconds! underwater. We knew that he has a great lung capacity for the amount of marathon matches he has played throughout his career and in the following video we can buy how he trains it: