ORDER OF PLAY
CENTRE COURT (starts at 4pm)
Timea BABOS (HUN) / Andrea HLAVACKOVA (CZE)  vs Kiki BERTENS (NED) / Johanna LARSSON (SWE)
Not before 7.30pm
Caroline WOZNIACKI (DEN)  vs Venus WILLIAMS (USA) 
Caroline Wozniacki will be competing in her eighth final of 2017. It is the fourth time the Dane has reached eight finals in one year, having previously accomplished this in 2009 (winning three), 2010 (winning six) and 2011 (winning six).
Venus Williams has never lost to Caroline Wozniacki in seven meetings, all on hard courts, dating back a decade. Williams won their first encounter, in the second round of Memphis in 2007, 6-4, 6-4, and their most recent 6-3, 7-6(1) in the fourth round of Miami in 2015. Wozniacki has only won one set in 15 against the American - the first set of the 2015 Auckland final, eventually won by Williams 2-6, 6-3, 6-3.
Venus Williams is 7-4 against Top 10 opponents in 2017, having not scored a Top 10 win in 2016. Caroline Wozniacki holds a 13-6 record against Top 10 players this year.
In her final match of 2017, Venus Williams will be looking for her first title of the year. The last time a player won the WTA Finals as their sole title of the year was in 1994, when Gabriela Sabatini beat Lindsay Davenport in the final. Like Australian Open and Wimbledon runner-up Williams, Sabatini had reached two finals previously that year, in Amelia Island and Strasbourg. Victory for Williams would also mark her 50th career title.
At 37 years old, Venus Williams is the oldest ever finalist at the WTA Finals. The previous record was held by 36-year-old Martina Navratilova, who lost to Monica Seles 7-5, 6-3, 6-1 in the 1992 final.
Victory for either Venus Williams or Caroline Wozniacki would lift their ranking to World No.3. It would be the first time Williams has been ranked in the Top 3 since October 2010, and the first time Wozniacki has been ranked in the Top 3 since January 2012.
Caroline Wozniacki will be playing her second final at the WTA Finals. In 2010, she was runner-up to Kim Clijsters 6-3, 5-7, 6-3. Venus Williams has played two previous finals at this event - beating Vera Zvonareva 6-7(5), 6-0, 6-2 in 2008 to claim her sole WTA Finals trophy, but losing to Serena Williams 6-2, 7-6(4) the following year.