In fact, Serena is one of the most successful tennis players of all time. And that's in large part thanks to her iconic serve ... you hit the ball makes a big difference. Chang Kee Jung: As ...

In tennis, you're supposed to show your dexterity and skill on the fly, but the serve ... big servers) when he worked so hard, and with such encouraging results, to become a more multi-faceted player.

Shelton hopped on to the Laver Cup and therefore caught the eye of the Swiss tennis maestro. Looking at his big serves, Federer couldn't hold his thoughts down about the rising American sensation ...