LONDON (AP) — David Goffin is into the last four of the ATP Finals, to go any further he'll have to do something he's never done before: beat Roger Federer.
The No.7-seeded Goffin beat Dominic Thiem 6-4, 6-1 at the O2 Arena on Friday to set up a semifinal meeting with Federer.
From 0-3, 0-15 down in the opening set, Goffin won 15 consecutive points to take control of the match, and never looked back.
"I've never found a key to beat Roger," said Goffin, who has lost all of his six meetings with the 19-time Grand-Slam champion. "Honestly, I don't know what to do tomorrow. But I'm going to try something, something different, something that I've never done in the past."
The victory took Goffin to 2-1 in the round-robin stage of the elite season-ending tournament after a win over Rafael Nadal and defeat to Grigor Dimitrov, who will meet Jack Sock in Saturday's other semifinal.