Britain's Andy Murray hits a forehand return to France's Gilles Simon during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 21, 2013. (AP Photo/Rob Griffith)

Photo by: Rob Griffith

Britain's Andy Murray hits a forehand return to France's Gilles Simon during their fourth round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 21, 2013. (AP Photo/Rob Griffith)