• One fan covers himself from the heat with a towel on Rod Laver Arena...
  • ... while others take a dip in a fountain to cool off
  • Maria Sharapova uses an ice towel to cool down
  • Carla Suarez Navarro celebrates her victory over Galina Voskoboeva
  • Simona Halep needed three sets to beat Varvara Lepchenko...
  • ... although Lepchenko needed treatment due to the extreme temperatures
  • Dominika Cibulkova powered into the third round
  • Alize Cornet celebrates her win over Camila Giorgi
  • Caroline Wozniacki survived a wobble to beat Christina McHale
  • Jo-Wilfried Tsonga signs autographs following his victory over Thomaz Bellucci
  • Rafael Nadal calls for a ball against Thanasi Kokkinakis
  • Roger Federer powers down a serve against Blaz Kavcic
  • Victoria Azarenka was a winner in the night session...
  • ...as was Briton Andy Murray
  • However, with the clock well past midnight, fifth seed Juan Martin Del Potro bowed out

Australian Open - Day Four

One fan covers himself from the heat with a towel on Rod Laver Arena...