Princess of Wales Participates in Wimbledon Training with Roger Federer and Ball Boys

Princess Kate played tennis with Roger Federer at Wimbledon.
They interacted with the Ball Boys and Girls program for teens.
The program trains teens to catch balls during tournaments at Wimbledon.
There are approximately 250 teens in the program with an average age of 15.
The teens begin training in February at the Raynes Park Community Sports Ground.