New York: Croatian teenager Ana Konjuh stunned fourth-seeded Agnieszka Radwanska 6-4, 6-4 on Monday, avenging a bitter Wimbledon disappointment and reaching the quarter-finals of the US Open.

Agnieszka Radwanska walks off the court following her loss to Ana Konjuh on Monday. Pic/AFP

The 18-year-old, who has made it past the third round of a Grand Slam for the first time, next faces 10th-seeded Czech Karolina Pliskova, a 4-6, 6-4, 7-6 (7/3) winner over Venus Williams.

Sweet revenge
The victory over Radwanska was sweet revenge for Konjuh, who held three match points against the Pole in the second round at Wimbledon but eventually lost 9-7 in the third set after stepping on a ball and turning her ankle. It was another blow for a player who starred as a junior, winning Australian Open and US Open junior titles in 2013, before she was slowed by elbow surgery in 2014.