Bogeys on 16 and 17 on Saturday saw Louis Oosthuizen slip from four-under for his round at that point to two-under as he finished the third round of the World Golf Championships-Workday Championship at The Concession in a share of 11th place.
His two-under-par 70 sees him at nine-under-par for the tournament, five behind Collin Morikawa of the United States, who has a two-stroke lead over compatriots Billy Horschel and Brooks Koepka. Rory McIlroy surged into contention with the best round of the day. His 66, which contained a double bogey, a bogey, seven birdies and an eagle, took him into a share of fifth, four shots off the lead.
Oosthuizen started his round with a birdie, but he was in trouble off the tee on the second as he ended up in a fairway bunker. He messed up his chip and had to scramble to make bogey. Another bogey came on the par-three fourth as he missed the green and raced his par putt four feet past the hole.
The bogey in 16 came when he missed a par putt from just short of six feet, and the drop on 17 came after he hit his tee shot into the water and had to take a penalty drop.
Behind him, Christiaan Bezuidenhout was in 35th position in the 72-man field after a one-under 71 too him to two-under for the tournament. Erik van Rooyen carded a level-par 72 to stay at two-over in 50th, while Brandon Stone’s second-successive two-over 74 saw him head to the final round in 54th at three-over.
JC Ritchie was steady with his level-par 72, his best round of the week, and climbed into a share of 64th. Daniel van Tonder went three-over for 75 and slipped to eight-under for the tournament in 68th.