Federer sees off Sock in ATP Finals opener
|ATP World Tour Finals|
|Venue: The 02 Arena, London Dates: 12-19 November|
|Coverage: Watch live on BBC Two, Red Button, BBC Sport website and mobile app, listen on BBC Radio 5 live sports extra and follow text updates online.|
Six-time champion Roger Federer opened with a straight-set win over Jack Sock at the ATP Finals in London.
The 36-year-old Swiss, making his 15th appearance at the season-ending event for the top eight players in the world, won 6-4 7-6 (7-4) at the O2 Arena.
American Sock was making his tournament debut, having qualified by winning the Paris Masters a week ago.
Alexander Zverev takes on Marin Cilic in Sunday’s second round-robin singles match in the Boris Becker Group.
The Pete Sampras Group starts on Monday, with Dominic Thiem taking on Grigor Dmitrov followed by Rafael Nadal against David Goffin.
More to follow.