Citi Open: Raonic falls in straight sets

Sock will face Kevin Anderson for a place in the Washington final after the South African ended plucky Yuki Bhambri's interest in the competition.

It may be recalled here that prior to this loss Bhambri had a stellar campaign and had recorded one of the biggest wins of his career when he defeated Gael Monfils 6-3, 4-6, 7-5.

Karma did him good for a short while as he saved a match point to win the second set.

Raonic will return to action Monday at the Rogers Cup in Montreal, where he will be the top Canadian competing.

Thiem had a match point at 5-6 in the third-set tiebreaker but couldn't convert.

"I felt I had it in the second set but I tried to stay as positive as possible", 31-year-old Anderson told Tennis Channel.

This is only the second time Bhambri has reached the last-eight round of an ATP Masters tournament after his run to the quarter-final at Chennai Open in 2014.

Russia's Daniil Medvedev upset Bulgarian fourth seed Grigor Dimitrov 6-4, 6-2, to reach a last-match matchup with Germany's eighth-ranked Alexander Zverev, who beat American Tennys Sandgren 7-5, 7-5 just before 2am after killing time with a nap and video games.

The quarterfinal matchups are Anderson vs. Bhambri, Raonic vs. But most importantly I was able to get the win and give myself a shot at the title tomorrow. "It's a challenge", Anderson said.

"I've practiced with him before but that was a few years ago".

Bhambri, the former world junior number one and junior Australian Open champion, came back from behind to beat Guido Pella 6-7 (5), 6-3, 6-1 in the R16 on Friday, August 4 to gift himself a quarter-final berth. In his second Tour quarterfinal, Bhambri meets Kevin Anderson.