Wang creates a big bang at Sun City with a stunning 64

Home star Louis Oosthuizen. five- under after rounds of 71 and 75 respectively.

Race to Dubai leader Henrik Stenson finished his round in style with birdies on the 17th and 18th, a second 69 of the week leaving the Open champion on four under.

The 40- year- old can win the Race to Dubai with a victory this week if nearest rival Danny Willett finishes outside the top 10, but the Masters champion carded a much-needed 67 to get back to level par for the tournament and into a tie for 16th.

“As everyone knows it’s been a tricky few weeks,” Willett said. “Today the head was in a better place and we scored better around a golf course we know well, put it in better positions where you can score from even if you don’t hit great shots.

“Obviously Henrik’s still played some good golf, but it was nice not to fall too far back. A good day tomorrow and hopefully we can stay on his tail.

“I withdrew from the World Cup yesterday due to the back possibly not holding up and maybe that’s eased you off, knowing you now just have to concentrate on these things.

“Tomorrow will be a pretty big day. We’re too far off the lead, but certainly not too far off having a really nice finish if we can get another low score in.”

Stenson, who has a lead of more than 250,000 points over Willett, said: “It was a tricky day out there. I didn’t play my best by any means. I had to fight hard and got back into it on the back nine with a couple of good shots. “I’m just trying to have a good week. “My goal was always to come into the last one and have it in my own hands and no matter what happens here tomorrow I will have that, so I have to play some good golf newt week to wrap it up.”

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