Funny moment during the match between Nadal and del Potro. After the match, Nadal said: 'He played well. I believe I increased little bit the level in the fourth and the fifth. But the fifth, he was playing huge, no? It was so difficult to stop him. I am very happy the way that I survived a lot of important points in that fifth set. I think I did a lot of things well. I went to the net.'