I think I may have figured out what doomed the two players. Bananas. Yes, bananas. I was watching Murry on the cross over when the camera panned to view Murry on the bench. Murry, was slunkered down, eating a banana. I thought to my self, that he for some reason looked rather out of it at that point. Perhaps he lost a little focus.. the camera panned over to the Joker and he was attentive, waiting to get back on the court, just drinking. Murry, lost the next two games and match. Fast forward.. On the cross over the cameras once again pann across and show Nadal.. guess what, he's eating a banana and he too looks out of focus. Nada losses the next two games and match. Perhaps eating those bananas made them to lose their focus slightly, I don't know, just coincidence? I thought it was quite interesting though if not slightly humerous.