In this photo released by Tennis Australia, Poland's Jerry Janowicz is sprayed with cool water at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 16, 2014. The Australian Open organizers implemented the Extreme Heat Policy when the temperature topped 43 C (109 F) and play was halted for just over fours on the outside courts but continued on the covered show courts. (AP Photo/Tennis Australia,Fiona Hamilton)