George - Three South Africans - Ernie Els, Retief Goosen and Branden Grace - are in a playoff in the final round of the Volvo Golf Champions at the Links at Fancourt.
The trio, tied on 12-under-par 280 for the tournament, will play the 18th hole in a sudden death format to find a victor.
Goosen and Els both birdied the 18th to move to 12 under, while Grace missed a short putt to win the tournament by a stroke.