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Pettersson leads Heritage by one shot


Carl Pettersson leads the RBC Heritage after three rounds at 12 under. He is one shot ahead of Colt Knost, who shot a third-round 69 at Harbour Town Golf Links.

Knost leads Zach Johnson by three shots heading into Sundays final round. Two-time champion Boo Weekley is a shot further back, while defending champion Brandt Snedeker, Kevin Na and Robert Garrigus are six shots off the lead.

World No. 1 Luke Donald is T-52, 14 shots behind Pettersson. He must finish inside the top 8 to maintain the No. 1 position in the Official World Golf Ranking.