Video PlayerClose
LONDON, Nov. 14 (Xinhua) -- Following are the collated results from the first day of the ATP Tour Finals at London's O2 Arena on Tuesday (prefix number denotes seeding):
Singles
8-Jack Sock, United States, bt 5-Marin Cilic, Croatia, 5-7, 6-2, 7-6 (4)
2-Roger Federer, Switzerland, bt 3-Alexander Zverev, Germany, 7-6 (6), 5-7, 6-1
Doubles
2-Henri Kontinen, Finland/John Peers, Australia, bt 3-Jean-Julien Rojer, Netherlands/Horia Tecau, Romania, 7-6 (3), 7-6 (6)
8-Ryan Harrison, United States/Michael Venus, New Zealand, bt 6-Pierre-Hugues Herbert, France/Nicolas Mahut, France, 6-7 (4), 6-4, 10-5
