Australian Open hots up – Li Na faced a battle to stay cool and to stay in the Australian Open against Lucie Safarova.
Medical treatment – Li's compatriot Zheng Jie needed medical treatment for heat stress during her 6-2 6-4 defeat by Casey Dellacqua. "I felt so hot, my mind wasn't working," said Zheng. "I was looking at the ball, but I couldn't focus on it. Then I couldn't concentrate. This weather is very difficult for me.
Sleepless nights – Serena Williams looked in complete control during her straight-sets win over Vesna Dolonc on Wednesday, but the top seed admitted to waking up in the middle of the night due to fears over dehydration.
Ice cool – Maria Sharapova wrapped ice around her neck in a bid to keep cool during her first round win over Bethanie Mattek-Sands.
It's a hot Juan – Playing early in the day on Tuesday, Argentina's Juan Martin del Potro felt the heat during his win over American Rhyne Williams.
Fainting – It all got to much for Canadian Frank Dancevic who fainted during his match with Frenchman Benoit Paire.
Keeping cool – Italy's 15th seed Fabio Fognini took an outdoor shower in a bid to stay cool.
Splish splash – Some fans also adopted the Fognini approach...
Exposed to the elements – While supporters in the Rod Laver Arena could at least take cover under its roof, fans on the outside courts were exposed to the elements.
Strike a pose – With temperatures exceeding 40 degrees Celsius at the Australian Open, sport scientist Dr. Ross Tucker suggests any player hoping to succeed Down Under should take up Bikram Yoga.