The Shanghai Rolex Masters — the eighth ATP Masters 1000 tournament of the season — will feature a star-studded field, including the entire Top 20 in the Emirates ATP Race to London.

Defending champion and World No. 2 Roger Federer, set to make his fifth appearance in Shanghai (13-3 record), finds himself in the same half of the draw as longtime rival Rafael Nadal, and could face the likes of Jo-Wilfried Tsonga in the Round of 16, and Kei Nishikori, Kevin Anderson, Nick Kyrgios or Fabio Fognini should he return to the quarter-finals.

Nadal’s quadrant also includes some heavy-hitting competition in Milos Raonic, Marin Cilic and Stan Wawrinka.

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Meanwhile, top-seeded Novak Djokovic’s draw is no cakewalk either. The former champion had his 13-match winning streak in Shanghai snapped with a semi-final loss to Federer last year, and in 2015 could be tested as early as the Round of 16 by Feliciano Lopez, and in the quarters by Richard Gasquet, David Ferrer or Bernard Tomic.

Lurking elsewhere in Djokovic’s half of the draw are potential semi-final opponents Andy Murray, Tomas Berdych, Gilles Simon and John Isner.

Shanghai will mark Federer’s first tournament since reaching the US Open final on September 13 (l. to Djokovic). The following weekend he played in a Davis Cup World Group playoff tie vs. the Netherlands, winning both singles matches. The 34-year-old Swiss star enters with a 53-8 record on the year (29-3 on hard courts). He has five ATP World Tour titles on the year. His last title came in August in Cincinnati, where he captured his 24^th career ATP Masters 1000 crown (d. Djokovic).

This is the seventh year of the ATP World Tour Masters 1000 tournament at the Qizhong Tennis Center, which was the site of the Tennis Masters Cup from 2005 to 2008. Reigning champion Federer, 2012-13 winner Djokovic and 2010-11 titleholder Murray are all former champions.