Switzerland's Roger Federer throws the ball along the court as he acts as a ball boy 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 throws the ball along the court as he acts as a ball boy 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 throws the ball along the court as he acts as a ball boy 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)