Tiger Woods rescued a sloppy back nine with a great birdie at the last to remain in contention at Augusta.
Woods had never carded three straight bogeys before at Augusta
Woods resumed his storm-delayed third round at the 9th on three under and immediately birdied the 10th.
But the defending champion then bogeyed 11 before returning to four under, a tie for second, with a birdie at 13.
Woods, however, then posted three straight bogeys to slide down the leaderboard before his birdie at 18 got him back to within two of the lead.
The 30-year-old American looked in ominous form after the storm delay on Saturday evening. And many were predicting a trademark charge on Sunday morning.
But after picking up another shot at the 10th he showed his first sign of frailty by giving it back at the next.
He then made a fairly routine, for him anyway, birdie at the long 13th to get to four under and a share of second place.
But he then three-putted the 14th for bogey, found water with his approach at the 15th for bogey and then missed another par putt at the 16th for his worst ever run at the Masters.
Woods, however, does not have four Green Jackets in his locker for no reason. And his reaction to birdieing the last suggested that he still feels he is in with a great chance of addding a fifth.
"The last putt was key to getting something back. I made a couple of mistakes, but I am still right in there," he said.