Serena Williams, Roger Federer and Rafa Nadal commit to Australian bushfires charity match

Caroline Wozniacki (left) and Serena Williams will take part in an exhibition match raising funds for Australia's bushfire relief.

(CNN)A number of the world's top tennis stars, including Serena Williams, Roger Federer and Rafa Nadal, have agreed to play in an exhibition match to raise funds for Australia's bushfire relief.

The trio, who have 62 grand slam titles between them, will be jo