made six birdies and two bogeys to grab a two-shot lead.
2 of 6Richard Heathcote/Getty Images
started the day with a one-shot lead, but he only managed a 1-over 72.
3 of 6Ian Walton/Getty Images
flew home to Monaco on Friday, thinking he had missed the cut. He scrambled to get back to Wentworth when he learned he'd made the cut. Karlsson got back just in time to shoot a course-record 62 on Saturday.
4 of 6Ross Kinnaird/Getty Images
shot a 1-over 72.
5 of 6Warren Little/Getty Images
dropped out of contention after a 5-over 76.
6 of 6Ian Walton/Getty Images
made two bogeys and a birdie for a 72.
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