Murray’s clinical 6-3, 6-3 win over Grigor Dimitrov guaranteed him a berth at the O2 Arena from Nov. 9-16.
Saina was extremely happy with the year 2014 where she won two titles – India Open Grand Prix Gold and Australian Open.
Djokovic, who is in a race with Federer to end the season on top, quickly build the lead playing some aggressive tennis.
Murray will lead Manila Mavericks in Mahesh Bhupathi’s league, starting November 28 in Philippines.
Wozniacki decided to run the New York Marathon after golfer Rory McIlroy called off their wedding.
Murray, meanwhile, believes Gala Leon’s appointment as Spain’s Davis Cup captain was handled “horribly”.
Serena Williams avenged her “embarrassing” loss to Simona Halep in the group stage with a ruthless display.
Sania and Cara beat Su-Wei Hseih of Chinese Taipei and Shuai Peng of China 6-1, 6-0 in straight sets.
The world number one Williams will take on Simona Halep in Sunday’s final.
Top-seeded Roger Federer beat the big-serving Croat Ivo Karlovic 7-6 (8), 3-6, 6-3.
Wozniacki served for the match at 5-4 in 3rd set but Serena broke back and won the tiebreaker and match.
The Spaniard also needed treatment for appendicitis this month in Shanghai.
Serena Williams takes the year-end top ranking for the fourth time, beside she achieved the feat in 2002, 2009 and 2013.
Sharapova needed to win in straight sets to stand any chance of advancing to the semi-finals.
It was the American’s worst loss since her defeat by Kruger in the quarter-finals at Oklahoma City in 1998.