Johanna Konta
Johanna Konta (right) has been eliminated from the US Open in New York Getty Images

Johanna Konta has been knocked out of the US Open in the last 16 by Anastasija Sevastova. The British number one and 13th seed lost 6-4 7-5 against the plucky Latvian at Flushing Meadows.

Konta, 25, recovered to 5-5 from 4-1 down in the second set and also survived two matches points against the world number 48, but ultimately conceded victory when she lost her serve for the final time on Arthur Ashe Court.

Sevastova - who retired from the sport in 2013 - will now play either eighth seed Madison Keys or Caroline Wozniacki in the quarter-finals in New York.

After the match, the volatile 26-year-old - who earlier beat Spanish third seed Garbine Muguruza during the tournament - revealed her pride at becoming the first Latvian woman to make a Grand Slam quarter-final since 1994.

"I had a lot of injuries. I was depressed and it just wasn't fun anymore," Sevastova said of her 19-month absence from tennis from May 2013, according to the BBC. "But now I'm back."

Konta, on the other hand, will have been disappointed in her performance, having made 34 unforced errors as compared to the six she made in beating Belinda Bencic in the previous round. The Briton also failed to exert any control with her serve, recording only one ace in the match and winning a meagre 45 percent of the points when she landed with her first effort.