|Venue: The 02 Arena, London Dates: 12-19 November|
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American eighth seed Jack Sock boosted his possibilities of reaching without equal four at the ATP Finals with victory over Croatian fifth seed Marin Cilic.
Sock won Five-7 6-2 7-6 (7-Four) in the second round of staff fits, after dropping to Swiss 2d seed Roger Federer in his opener on Sunday.
Federer and German third seed Alexander Zverev meet in Tuesday’s 2d have compatibility throughout the Boris Becker Group at 20:00 GMT.
The very best two avid players from every staff qualify for the semi-finals.
“That was a tough one for sure,” said Sock.
“It’s been an enchanting morning to this level, the fireside alarm went off at 4am and we had to pass out the improvement. But I love taking part in proper right here in London, this can be a terrific atmosphere, you make me in point of fact really feel like space.
“I am simply excited to win and stay myself alive.”
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