WTA Tour Championships groups announced

Serena Williams
© PA Photos
The groups for this year's WTA Tour Championships in Istanbul are announced.

The two groups for this year's WTA Tour Championships in Istanbul have been announced.

Serena Williams has been drawn in the Red Group with world number one Victoria Azarenka, Angelique Kerber and Li Na.

The White Group is made up of Maria Sharapova, Agnieszka Radwanska, Petra Kvitova and Sara Errani.

The players will be involved in a round robin format, with the two best competitors from each group making it through to the semi-finals.

The end-of-season event starts on October 23.

Li Na
Read Next:
Li Na makes WTA Championships return
>
You May Like
Recomended from Sports Mole



ATP RankingsPoints
1Scotland flag Andy Murray7,750
2Spain Rafael Nadal7,555
3Switzerland Roger Federer7,145
4Switzerland Stanislas Wawrinka5,780
5Serbia Novak Djokovic5,325
6Croatia Marin Cilic5,155
7Alexander Zverev4,470
8Austria Dominic Thiem4,030
9Japan Kei Nishikori3,285
10Canada Milos Raonic3,230
11Bulgaria Grigor Dimitrov3,070
12France Jo-Wilfried Tsonga2,770
13Belgium David Goffin2,560
14Spain Roberto Bautista Agut2,425
15Czech Republic Tomas Berdych2,390
16United States Jack Sock2,335
17Pablo Carreno Busta2,305
18Lucas Pouille2,220
19United States John Isner2,110
20United States Sam Querrey2,060