Tennis ball machines are designed to simulate ... Not only does it come with a remote control, but it’s equipped with a telescopic ball collector with a 20-ball capacity to make clean-up a ...

As a collector himself and brand ambassador for ... "It is now lighter than a tennis ball," enthused Djokovic. "Whoever is into performance sports can very much appreciate this lightness." ...

There's now a Billie Jean King collector Barbie ... Her doll, $30, comes with a racquet, ball and realistic-looking tennis kit.