It was an afternoon to forget for world No. 1 Dustin Johnson at the RBC Heritage.
After knocking in nearly 160 feet worth of putts in the third round, Johnson entered the finale at Harbour Town with a one-shot lead as he sought his third worldwide win of the year. Even after a slow start, he made the turn in even par to retain a share of the lead amid a crowd of contenders.
But things went south very quickly for Johnson, whose title chances crumbled in a five-hole stretch from Nos. 11-15. A wayward drive on 11 led to a bogey, and he dropped another shot on the par-4 12th.