This topic is interesting and there are no valid reasons to remove it. Of course, it hurts your tardish feelings, because this thread proves that some players were toying with Nadal, and you Nadullfans can thank God that Del Potro came to pieces.
I followed and liked Del Potro from before he was getting straight-setted by Nadal, so let me tell you something, double account: you sound silly.
Players have ups and downs. At the 09 USO, peak Del Potro met weak Nadal, and on the best surface for a Del Potro victory.
Back at the start of clay season in 09, I remember saying Del Potro would be a factor at the French, and being scoffed at. And he did start out losing to Ljubicic on clay. He's a momentum player.