Australian Open: Jordan Spieth three off the lead in Sydney

Jordan Spieth won the Masters and US Open in 2015

World number one Jordan Spieth cut Matthew Jones' lead in the Australian Open to three shots going into Sunday's final round in Sydney.

American Spieth, 22, shot a four-under-par 67 to move seven under for the tournament and into second place.

Overnight leader Jones, from Australia, carded a second successive 68 to move to 10 under overall.

Northern Ireland's Darren Clarke trails Jones by nine strokes after a one-under-par 67 left him tied for seventh.

The European Ryder Cup captain is joined on one under by Australian Adam Scott, who recovered from a 73 on Friday to shoot 68, including an eagle on the 18th. The 36-year-old former world number one is trying to avoid finishing winless for the first season in his professional career.

It was a disappointing day for England's Lee Westwood, however, as he carded his worst round of the tournament - a four-over 75 to leave him tied for 35th on four over.

While the day ended well for Spieth, he first endured a rollercoaster front nine that included four bogeys - three of them in the first four holes - and three birdies.

However, three birdies and an eagle - at the 17th - in his back nine kept this year's double major winner in contention.

"I made a couple of bad swings and a couple of bad decisions," said Spieth. "Not many pars.

"It was one of the great fightbacks I've had. I fought hard."