Switzerland's Roger Federer jokes with a cartoon character Sponge Bob Square Pants during an exhibition match during the Kids Tennis Day at Melbourne Park ahead of the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 12, 2013. (AP Photo/Andy Wong)

Associated Press
Switzerland's Roger Federer jokes with a cartoon character Sponge Bob Square Pants during an exhibition match during the Kids Tennis Day at Melbourne Park ahead of the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 12, 2013. (AP Photo/Andy Wong)
Switzerland's Roger Federer jokes with a cartoon character Sponge Bob Square Pants during an exhibition match during the Kids Tennis Day at Melbourne Park ahead of the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 12, 2013. (AP Photo/Andy Wong)
View Comments (0)