Laura Robson (right) will face American Sloane Stephens after upsetting Petra Kvitova.
Laura Robson (right) will face American Sloane Stephens after upsetting Petra Kvitova.
Andrew Brownbill/AP

Former Wimbledon champion Petra Kvitova was upset by 18-year-old Laura Robson 6-2, 3-6, 11-9 in a second-round Australian Open match that ended in the early hours of Friday morning.

No. 8-seeeded Kvitova was leading 3-0 in the third set before Robson broke her three times to take a 6-5 lead. Kvitova broke back and the set stayed on serve until Robson broke again in the 19th game.

Serving for the match a second time, Robson made no mistakes and held at love to advance to the third round.

Kvitova, once ranked No. 2, won the 2011 Wimbledon title and reached the semifinals at the Australian and French opens last year.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.