Nick Kyrgios is no stranger to sparking drama and controversy on the tennis court, and on Sunday it was a verbal spat with a heckling fan that animated the Australian at the Miami Open.

Serena Williams has been forced to withdraw from the Miami Open due to a knee injury.

Martina Navratilova may have apologized for using the term "cheating" when describing transgender athletes but the issue received further attention over the weekend with former UK Olympic swimmer Sharron Davies saying trans women had unfair physical advantages.

That Julie Heldman feels well enough within herself even to attend the Indian Wells Masters next week should be seen as sufficient victory for one of women's tennis' original pioneers.

15-time grand slam winner Novak Djokovic was on top of the world at the beginning of 2016 when injury caused a slam drought that went nearly two years.

An LGBT group has cut ties with tennis great Martina Navratilova after she said it was a form of "cheating" for transgender women to be allowed to compete in women's sport.

After Serena Williams surrendered a 5-1 lead and four match points against Karolina Pliskova in an unbelievable quarterfinal at the Australian Open on Wednesday, the word 'choke' did the rounds on social media.

Petra Kvitova and Naomi Osaka will play for the Australian Open title -- and world No. 1 ranking -- after both won their Thursday semifinals in scorching Melbourne.

Serena Williams reached the quarterfinals of the Australian Open after surviving a severe test against world No. 1 Simona Halep.