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What do Guillermo Garcia-Lopez, Jurgen Melzer and Florian Mayer all have in common? They've all beaten Nadal during the tour's "Asian swing" over the past two years.
Those three clearly aren't in the same caliber as Nadal with six singles titles between them, but they've been able to catch a tired Rafa who's either come off a U.S. Open title, as in 2010, or made the finals, in '11.
Nadal's not giving himself enough time to rest and it shows: Excluding Davis Cup, he's only won three titles in his career after the U.S. Open. Perhaps just showing up for the Masters 1000 event in Shanghai will leave him fresher for the home stretch.