RIYADH, Saudi Arabia — Aryna Sabalenka clinched the year-end No. 1 spot in the women's rankings for the first time when Iga Swiatek lost at the WTA Finals on Tuesday.

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.

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,

Coco Gauff earned her second career win over Iga Swiatek on Tuesday, winning in straight sets to reach the semifinals of the WTA Finals.

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,

Coco Gauff enjoyed a successful start by beating Jessica Pegula 6-3, 6-2 in an American matchup at the WTA Finals on Sunday.

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.

Iga Swiatek and Coco Gauff enjoyed winning starts to their WTA Finals campaigns in Riyadh on Sunday, albeit in contrasting fashion.