“I’m going to take two or three aspirins before the match,” said Novak Djokovic’s coach Marián Vajda. “I’m going to need it. It’s going to be a real challenge.”

Like Tylenol?

“No, special Slovak kind. I need it to work.”

Tonight, Novak Djokovic will take on the determined 31-year-old veteran Carlos Moya in the U.S. Open quarterfinal. Djokovic's entire trip through the Open has been an exhausting one (see here and here) and tonight could be another headache.

“[Moya's] playing with a lot of confidence,” said Vajda. “He’s going to go for it.”

And believe it or not, Moya—who's in good form at the moment—has beaten him twice this year.

Djokovic has a pretty clear path to the finals if he wins, but after tonight, will he have anything left?

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