NEW YORK—For some in tennis, the serve clock was long awaited. For others, it was long dreaded. Not surprisingly, its introduction during the North American hard-court season this summer has ...

Novak Djokovic rediscovers his mojo and Jessica Pegula rises - the latest edition of our weekly tennis round-up.

For every tennis player, the perfect serve is the holy grail. The serve is the most powerful shot in tennis, and the only one that the player has full control over. Great servers such as Pete ...