This takes a little practice, as there's really nothing to guide the ball except inertia, but that's actually part of the fun ...

Looking for this year’s must-have holiday toy? The StarGlide Fly Ball is creating quite a buzz, and right now it’s available ...

1 accidentally sent a ball flying into the head of a ball boy. Thankfully, the boy seemed OK, with Djokovic running over to give him a high five and an apology before getting back to the match.