Two lone spectators sit in the sun and watch third round matches on Margaret Court Arena as temperatures are expected to top 44C (112 F) for the fourth consecutive day at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Eugene Hoshiko)

Australian Open Tennis

Two lone spectators sit in the sun and watch third round matches on Margaret Court Arena as temperatures are expected to top 44C (112 F) for the fourth consecutive day at the Australian Open tennis championship in Melbourne, Australia, Friday, Jan. 17, 2014.(AP Photo/Eugene Hoshiko)

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