ATP World Tour Finals results

Following are the results from the ATP World Tour Finals at London O2 Arena on Tuesday (prefix number denotes seeding)

Men's Singles

Group Stan Smith

8-Kei Nishikori, Japan, bt 6-Tomas Berdych, Czech Republic, 7-5, 3-6, 6-3

3-Roger Federer, Switzerland, bt 1-Novak Djokovic, Serbia, 7-5, 6-2

Federer qualifies for semifinals

Doubles:

Group Ashe/Smith

Rohan Bopanna, India/Florin Mergea, Romania, bt Jamie Murray, Britain/John Peers, Australia, 6-3, 7-6 (7/5)

Bob Bryan, United States/Mike Bryan, United States, bt Simone Bolelli, Italy/Fabio Fognini, Italy, 6-3, 6-2

Bopanna/Mergea qualify for semifinals

Endit