American star Coco Gauff defeated world No. 2 Iga Swiatek 6-3, 6-4 on Tuesday, sealing her spot in the semifinals of the year-end WTA Finals in Riyadh, Saudi Arabia.

Coco Gauff beat defending champion Iga Swiatek 6-3 6-4 at the WTA Finals in Riyadh on Tuesday to reach the semi-finals and ensure Aryna Sabalenka would finish the year as world number one.

Coco Gauff claimed just a second win in 13 meetings against Iga Swiatek to book her spot in the semi-finals of the WTA Finals in Saudi Arabia. The American’s 6-3 6-4 victory also ensures Aryna Sabalenka will finish the year as world number one, with defending champion Swiatek no longer able to overtake the Australian Open and US Open winner.

Coco Gauff will face world No. 2 Iga Swiatek in an exciting clash at the year-end WTA Finals in Riyadh on Tuesday, as the American star looks to build on her solid form.

However, Gauff has played at a much higher level since the US Open and shaking up her coaching staff. On Sunday, Gauff defeated Pegula in straight sets during their Group Stage match at the WTA Finals: 6-3, 6-2.

As the WTA Tour Finals round-robin stages progress, Aryna Sabalenka is one win away from securing the year-end No. 1 ranking after qualifying for the semifinals. Sabalenka was drawn with Jasmine Paolini,

Aryna Sabalenka will end the year as world No. 1 for the first time, 12 months on from surrendering the honor in the final stages of the season. Iga Swiatek’s 3-6, 4-6 defeat to Coco Gauff at the WTA Tour Finals in Riyadh,

From start to finish, Aryna Sabalenka was the best tennis player this year. Sabalenka's dominant season was bookmarked with Australian Open and US Open titles, with plenty of winning in between. While she is still competing in the WTA Finals in Riyadh,

This story has been updated to reflect confirmation of Aryna Sabalenka as year-end WTA world No. 1. RIYADH — This time last year, Aryna Sabalenka was at the heart of a player re