Sweden’s Carl Pettersson charged into contentio as Webb Simpson’s six under par third round of 64 gave him a two shot lead in the Wyndham Championship in Greensboro.
Second overnight, Simpson wrested the advantage from Tommy Gainey, who slipped back into second with a moderate round of 69.
Simpson did not look likely to make a charge after making two bogeys in his first four holes but found his A-game, getting back on terms with birdies at five and eight before picking up six strokes between the 13th and 17th holes, with four birdies and an eagle.
Gainey also struggled early, bogeying the first two holes before pulling it round and ensuring an under par finish with a birdie on the 17th.
Petterson and Josh Mallinger sit on shot further back on 12 under, the Swede shining with a blemish-free 63 to claim the round of the day.
Daniel Summerhays is alone on 11 under with a chasing pack of five on ten under including South Africans Retief Goosen and Ernie Els.
