The four biggest tournaments in tennis cooperate to sustain their primacy. They're also constantly trying to one-up each ...

Halep was a hugely popular first-time Grand Slam champion, well-liked in the dressing room and within the sport in general ...

Which tennis players have won the most grand slams in history? Men and women singles titles, records compared.

The winner of 24 singles titles called an end to her career after a first-round loss Tuesday in the Transylvania Open in her ...

Two-time Grand Slam champion Simona Halep announced her retirement from tennis at age 33 after a first-round loss at a ...

Keys provided the feel-good story at the Australian Open. Aged 29, more than seven years after being demolished in her last ...

The 33-year-old issued a statement on court to the crowd post match after her first round defeat at the Transylvania Open and ...

Madison Keys spoke with Andy Roddick about the major change she made to finally secure a Grand Slam title, more than seven ...