East London, South Africa - Reigning British Open champion Louis Oosthuizen posted a four-under 69 on Saturday to share the third-round lead of the Africa Open.
Second-round co-leader Markus Brier carded a three-under 70 and matched Oosthuizen in first at 13-under 206. The pair enjoys a one-stroke lead at East London Golf Club.
Defending champion Charl Schwartzel shot a five-under 68 on Saturday to get into contention. He is tied for third place with Jbe Kruger (67), Manuel Quiros (68) and Jaco Van Zyl (70) at minus-12.
Second-round co-leader Branden Grace had sole possession of the lead with a birdie at the 15th. He was 15-under par, but triple-bogeyed the 16th and double-bogeyed the next hole. A birdie at the last gave him a one-under 72 and he is part of a large group tied for seventh place.
Miles Tunnicliff, the other leader after Friday, also had a 72 and joined Grace, Chris Wood (67) and Ross McGowan (71) at 11-under-par 208.