Rafael Nadal is interviewed by Jim Courier (R) after beating Ivo Karlovic at the Australian Open in Melbourne on Sunday, January 24, 2010. Photo: AP
China's Zheng Jie waves to the crowd after beating Alona Bondarenko. Photo: AP
Dinara Safina (L) shakes hands with Maria Kirilenko as she retried injured from the women's singles fourth round match. Photo: AP
Fernando Gonzalez throws his racquets as he plays Andy Roddick at the Australian Open. Photo: AP
Justine Henin (R) shakes hands with Yanina Wickmayer at the Australian Open. Photo: AP
Marin Cilic celebrates after beating Juan Martin del Potro. Photo: AP
Justine Henin celebrates after beating Yanina Wickmayer to win the women's singles fourth round match. Photo: AP
Juan Martin del Potro reacts after losing to Marin Cilic at the Australian Open. Photo: AP
Nadia Petrova (L) greets Svetlana Kuznetsova at the net after winning the women's singles fourth round match. Photo: AP
Rafael Nadal celebrates a point against Ivo Karlovic of Croatia. Photo: AP
Andy Murray reacts during his match against John Isner. Photo: AP