Sock boosts hopes with win over Cilic
American eighth seed Jack Sock boosted his chances of reaching the last four at the ATP Finals with victory over Croatian fifth seed Marin Cilic.
Sock won 5-7, 6-2, 7-6 (7-4) in the second round of group matches, after losing to Swiss second seed Roger Federer in his opener on Sunday.
Federer and German third seed Alexander Zverev later met in yesterday’s second match in the Boris Becker Group.
The top two players from each group qualify for the semi-finals.
“That was a tough one for sure,” said Sock.
“It’s been an interesting morning so far, the fire alarm went off at 4am and we had to exit the building. But I love playing here in London, it’s an amazing atmosphere, you make me feel like home.
“I’m just excited to win and keep myself alive.”