Tennis fans cool off in mist sprayed by fans on a hot summer day at the Australian Open tennis tournament in Melbourne, Australia, on 18 January 2016. The Australian Open tennis tournament will go from the 18th of January until the 31st of January 2016 and is Australia’s foremost annual tennis event EPA/FILIP SINGER

Japanese fans overwatch the match between Kei Nishikori of Japan and Jo-Wilfried Tsonga of France during their fourth round match on day seven of the Australian Open tennis tournament in Melbourne, Australia, 24 January 2016. EPA/LUKAS COCH

A fan of Spain’s Rafael Nadal smiles during the first round match between Fernando Verdasco of Spain and Nadal at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 19 January 2016. EPA/DAVID CROSLING

Australian fans cheer during the second round match between Jo-Wilfried Tsonga of France and Omar Jasika of Australia at the Australian Open Grand Slam tennis tournament in Melbourne, Australia, 20 January 2016. EPA/DAVID CROSLING

Fans wait for Stanislas Wawrinka of Switzerland to sign autographs after he won against Radek Stepanek of the Czech Republic in their second round match on day four of the Australian Open tennis tournament in Melbourne, Australia, 21 January 2016. EPA/DAVID CROSLING