|US Open 2019|
|Venue: Flushing Meadows, New York Dates: 26 Aug – 8 Sep|
|Coverage: Live text and BBC Radio 5 Live Sports Extra commentary on selected matches on the BBC Sport website and app. Click here for Live Guide.|
The 28-year-old won 6-2 6-3 in 71 minutes to reach the last 16 for the third Grand Slam in a row.
Konta, ranked 16th in the world, will face Czech third seed Karolina Pliskova for a place in the quarter-finals.
She is the last Briton left in the singles at Flushing Meadows after Dan Evans lost to Roger Federer earlier.
More to follow.