Roger Federer and Rafael Nadal will play an exhibition match on Sunday ahead of the Australian Open to raise funds for the country's flood victims. Federer, Nadal, Novak Djokovic and Kim Clijsters will join Lleyton Hewitt in a "Rally for Relief" match at Rod Laver Arena. Also participating will be Sam Stosur and retired star Pat Rafter, who both come from the affected state of... More...