It was the 3rd grand slam in a row that Nadal finished with an injury and it's becoming clearer and clearer that he won't be able to keep up playing like this for much longer. Boris Becker seems to agree as he doesn't think Nadal will be playing at 40. He's 36 now so that's not a shocking stance to have but he did add that his tennis days are 'numbered':
"If you ask me if I see Rafa playing at 40, the answer is no. Rafa's loss against Mackenzie McDonald is the first step toward his retirement. He is 36, and that injury requires time to heal. Rafa's tennis days are numbered."
Do you agree with Becker, tell us below.