This week, the ATP finishes its regular season at the final Masters 1000 tournament of the year in Paris and the WTA closes out its season in Zhuhai, China, for the inaugural WTA Elite Trophy.
The Watch List spotlights the must-know storylines for the upcoming week in tennis. This week, the ATP finishes its regular season at the final Masters 1000 tournament of the year in Paris and the WTA closes out its season in Zhuhai, China, for the inaugural WTA Elite Trophy.
BNP Paribas Masters (Paris-Bercy)
After Richard Gasquet lost in the semifinals at the Swiss Indoors on Saturday, David Ferrer and Kei Nishikori secured their spots in the ATP World Tour Finals, completing the 2015 field for the year-end championships, beginning on Nov. 15. Ferrer and Nishikori joined Novak Djokovic, Andy Murray, Roger Federer, Stan Wawrinka, Tomas Berdych and Rafael Nadal in the final eight.
This week's Paris Masters marks the final tournament of the season before the ATP Finals in London and eight of the Top 10 are in action. No. 1 Djokovic leads the field as he looks to extend his 17-match winning streak and capture his 10th title of the season. He's also looking to become the first player to win six ATP Masters 1000 titles in a season—the Serb won five in 2011. Murray is the second seed, followed by Swiss Indoors champion Federer, Wawrinka and Berdych. Djokovic has Wawrinka, Berdych, Nadal and Kevin Anderson in his half of the draw, while Murray has drawn Federer, David Ferrer, Nishikori and Marin Cilic.
Huajin Securities WTA Elite Trophy Zhuhai (Zhuhai, China)
Complete group breakdown:
Venus Williams 
Carla Suarez Navarro 
Karolina Pliskova 
Roberta Vinci 
Following Agnieszka Radwanska's win at the 2015 WTA Finals in Singapore, the inaugural WTA Elite Trophy in Zhuhai will begin on Tuesday with a 12-player singles field consisting of players ranked between No. 9 and No. 20, with one wildcard. The players will compete in a four-group round robin format, with the winners of each group advancing to the semifinals.