Serena Williams will face her close friend Caroline Wozniacki when the Dane celebrates her career with an exhibition match in 2020.
Two weeks before the Australian Open, Coco Gauff, Serena Williams and Bianca Andreescu will all be playing at the Auckland Open.
Serena Williams won her first grand slam on September 11 1999, triumphing in the US Open final, and we take a look at her career in numbers.
Serena Williams is agonisingly close to matching Margaret Court's grand slam record but has been stuck on 23 titles for almost three years.
Bianca Andreescu has been through a lot in her short career, but is now in a place where she has nothing to fear after winning the US Open.
Despite a fourth successive grand slam final defeat, there is no danger of Serena Williams giving up, says coach Patrick Mouratoglou.
Bianca Andreescu beat Serena Williams to win the US Open, with the teenager left tearful after achieving her dream.
Serena Williams was scathing in her assessment of her US Open final performance, saying: "I honestly don't think Serena showed up."
Serena Williams again missed out on a chance to tie Margaret Court's record, but suggested that thought has not been in her mind.
Bianca Andreescu won the US Open by withstanding a roaring second-set comeback from Serena Williams, whose fear factor is crumbling.