British number one Johanna Konta came through a tricky encounter with Russia's Daria Kasatkina to reach the US Open second round.

Konta had started in devastating form, winning the first set in just 24 minutes, but was then frustrated before going on to triumph 6-1 4-6 6-2.

She is the only British woman left in the singles after Harriet Dart lost 6-3 6-1 to Romanian Ana Bogdan.

Konta plays Russian Margarita Gasparyan or Australian Priscilla Hon next.

Fellow Britons Dan Evans and Cameron Norrie are also in action on day one of the final Grand Slam tournament of the year.

More to follow.