Gauff stirred some controversy among fans when she lost to Krejcikova in her final group stage match after beating world No. 2 Iga Swiatek and fellow American Jessica Pegula. The loss eliminated Swiatek and some fans felt Gauff lost on purpose.

Coco Gauff has won the WTA Finals for the first time by rallying to beat Olympic champion Zheng Qinwen 3-6, 6-4, 7-6 (2) in the final in Riyadh

American tennis sensation Coco Gauff ended her season in style Saturday, rallying to defeat China’s Zheng Qinwen to win the WTA Finals in Riyadh, Saudi Arabia.

Coco Gauff beat China's Zheng Qinwen 3-6 6-4 7-6(2) in a three-hour battle on Saturday to become the youngest player to win the WTA Finals since Maria Sharapova in 2004 and the first American champion since Serena Williams 10 years ago.

Coco Gauff became the youngest player to win the WTA Finals title in 20 years with a gruelling 3-6, 6-4, 7-6 (7/2) victory over Olympic champion Zheng Qinwen in Riyadh

World No. 3 Coco Gauff claimed her first WTA Finals title in a dramatic 3-6 6-4 7-6 win over Olympic champion Zheng Qinwen at the WTA Finals in Riyadh.