
After failing to defend her US Open title, Emma Raducanu is through to the second round of the Slovenia Open.
The British number one was leading her opponent when she decided to stop playing.
The Ukrainian, who is 89th in the world, hurt her wrist when she was down by 30 points.
Raducanu, 19, went into the WTA 250 hard-court event as top seed but having slid from 11th to 83rd in the world.
She didn't defend any of the ranking points she earned in her victory at the US Open because of her first-round loss.
A surprise run as a teenagequalifier catapulted her to number 10 in the world, but she has found her full-time transition to theWTA Tour difficult.
She broke three times to take the first set and then again in the third game of the second set to take complete control of the match.
She was two points from victory when her opponent injured her wrist after losing her grip on her racket.
She will face either Elizabeth Mandlik from the US or Anna-Lena Friedsam from Germany in the second round.
Many of the British top seed's opponents will be higher in the world rankings because of a quirk in the seedings at the Slovenia Open.
The sixth seed is Alize Cornet, the Wimbledon champion is third, and the second seed is Beatriz Haddad Maia.
Dart moved up three places to 85th after her run to the second round of the US Open.
Dart is placing pressure on her status as Britain's number one.