Rafael Nadal of Spain, right, and Andy Roddick of the United States react during an exhibition tennis match in Melbourne, Australia, Sunday Jan. 17, 2010. A series of exhibition games were set up by Roger Federer of Switzerland ahead of the Australian Open to raise funds for the victims of the Haiti earthquake. The world number one has recruited a number of stars, including Rafael Nadal and Serena Williams, to play doubles matches on Sunday at Melbourne Park.