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.

Simona Halep, a two-time Grand Slam singles champion who was ranked world No. 1 in women's tennis singles for 64 combined ...

Two-time Grand Slam champion Simona Halep has announced her retirement from tennis at age 33. Halep spoke to the crowd after ...

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

Former world No. 1 and two-time Grand Slam champion Simona Halep announced her retirement at age 33 after losing in the first ...

An inspired Madison Keys ripped up the script with a bold and brilliant performance to end Aryna Sabalenka's Australian Open ...

The newlywed Keys, whose husband and coach is former American tennis player Bjorn Fratangelo, said after some much needed sleep, they'll be "back to work on Monday" to prepare for "lots of tournaments ...

Jannik Sinner romped to the first Grand Slam title of the year after beating Alex Zverev in a one-sided final at the Australian Open. The Italian beat his opponent 6-3,7-6(4),6-3 in front of a ...

Jannik Sinner, a 23-year-old Italian tennis player, defeated Germany's Alexander Zverev to win his third Grand Slam title at ...