Katie Boulter is out of the China Open after suffering a straight-set defeat by Coco Gauff on Sunday

The British number one was beaten 7-5 6-2 by the world number six, who progresses to the fourth round in Beijing.

The 20-year-old American went 5-2 up in the first set before Boulter, 28, found her rhythm, winning three games on the bounce to level the match.

After a hold from the 2023 US Open champion, Boulter saved two set points but she double-faulted before sending a forehand wide to hand Gauff the first set after 50 minutes.

Gauff broke Boulter’s serve before going 4-1 up in the second set. Boulter, the world number 34, then saved one match point but Gauff broke her serve again to clinch the set inside 35 minutes.