Serena, Nadal and Thiem advance to U.S. Open quarter-finals

Serena Williams survived a scare from giant-killer Kaia Kanepi to claim a rollercoaster 6-0 4-6 6-3 win on Sunday (September 2) and move into the U.S. Open quarter-finals, a step closer to a record-equalling 24th career Grand Slam title.