Tommy Fleetwood will take a one-shot lead into the fourth and final round of the Volvo Golf Champions in Durban on Sunday.
The Englishman hit a three-under-par 69 in the third round to take himself to 10-under overall, with France's Victor Dubuisson (69) and Dutchman Joost Luiten (70) tied for second place.
The 22-year-old hit 18 holes on Saturday in a round that included four birdies and one bogey.
South Africa's Louis Oosthuizen, who was on top of the leaderboard along with Fleetwood and Luiten at the end of the second round, finished the day on eight-under.
