Dustin Johnson made one mistake that suddenly put some intrigue into the final day of the PGA Tour season — the Tour Championship and the FedEx Cup.
Johnson clipped a tree trying to get out of the rough on the 17th hole and made double bogey, and only a birdie on the final hole at East Lake on Saturday allowed him to shoot a one-under-par 69 and regain a share of the lead with Kevin Chappell.
Chappell went from a four-shot deficit on the front nine to a one-shot lead when he made a 10-foot birdie putt on the 17th and Johnson made his double bogey. Chappell, still looking for his first PGA Tour victory, shot a 68.
They were at eight-under...