Kids Tennis Day ahead of the 2015 Australian Open at Melbourne Park 2015

(L-R) Roger Federer of Switzerland, Ana Ivanovic of Serbia, Victoria Azarenka of Belarus, Eugenie Bouchard of Canada, Nick Kyrgios of Australia and Thanasis Kokkinakis pose following the Rod Laver Arena Spectacular as part of Kids Tennis Day ahead of the 2015 Australian Open at Melbourne Park

Roger Federer of Switzerland, Ana Ivanovic of Serbia, Victoria Azarenka of Belarus, Eugenie Bouchard of Canada, Nick Kyrgios of Australia and Thanasis Kokkinakis and Nickelodeon characters and presenters pose following the Rod Laver Arena Spectacular as part of Kids Tennis Day ahead of the 2015 Australian Open at Melbourne Park