Thiem stuns Fed at Finals

LONDON - Dominic Thiem keeps getting the better of Roger Federer.

Thiem beat Federer 7-5, 7-5 on Sunday in their opening match at the ATP Finals for his fifth win in seven meetings with the Swiss great - and third straight this year.

"To beat him, everything has to fit together. Today I think that was the case again," Thiem said. "Every time, only playing against him is a big honor. Beating him is even better."