Coco Gauff's biggest payday in tennis came at the WTA Finals in Riyadh when she defeated Zheng Qinwen 3-6, 6-4, 7-6(2) to earn a cheque of $4.805m.
World No 1 Aryna Sabalenka turned in an agitated display as she was beaten by Coco Gauff in a compelling WTA Finals last four clash in Riyadh.
Despite beating beat Daria Kasatkina, Iga Swiatek was knocked out of the WTA Finals in Riyadh on Thursday.
Coco Gauff sealed her place in the WTA Finals semi-finals thanks to a shock win over long-term rival Iga Swiatek on Tuesday.
The WTA has announced that Riyadh, Saudi Arabia will be hosting the next three editions of the WTA Finals.
WTA chairman Steve Simon will vacate his position as chief executive as the organisation undergoes a restructuring.