1 Nov 2009

All-Williams final at WTA Championships

9:06 am on 1 November 2009

Defending champion Venus Williams and sister Serena will clash for the 23rd time in their careers in the final of the season-ending WTA Championships.

The world Number 7 defeated Serbia's Jelena Jankovic 5-7 6-3 6-4 in her semi-final while 2001 champion Serena, the new world number one, reached the final when Caroline Wozniacki was forced to retire.

Danish teenager Wozniacki, who came into the tournament carrying a left thigh strain and who had struggled with cramps in the round-robin stage, was 4-6 1-0 when a stomach strain forced to her to quit.