Spain’s Rafael Nadal takes a break during a practice session with Switzerland’s Stan Wawrinka on Rod Laver Arena at Melbourne Park

Spain’s Rafael Nadal has a drink as he takes a break during a practice session with Switzerland’s Stan Wawrinka on Rod Laver Arena at Melbourne Park January 14, 2015. The Australian Open tennis tournament begins on January 19. REUTERS/David Gray (AUSTRALIA – Tags: SPORT TENNIS)

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