Stanislas Wawrinka of Switzerland reacts after losing a point to Alejandro Falla of Colombia during their second round match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014.(AP Photo/Eugene Hoshiko)

Australian Open Tennis

Stanislas Wawrinka of Switzerland reacts after losing a point to Alejandro Falla of Colombia during their second round match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014.(AP Photo/Eugene Hoshiko)

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