Colin Montgomerie birdied the final hole to take a one-shot lead heading into the final round of the Senior PGA Championship in Michigan.
Montgomerie's third round 68 was enough to take him to seven-under at Harbor Shores and put him one ahead of former Ryder Cup team-mate Bernhard Langer.
Langer and Montgomerie, who played together for the first three days as well, will go head-to-head on Sunday, with the Scot looking to win his first senior major after failing to grab one on the regular tour.
Marco Dawson, Bart Bryant and Kiyoshi Murota share third place on five-under, with Dawson leaping into contention with the best round of the tournament - a seven-under 64.
Montgomerie looked like missing out on the lead when he dropped a shot at the 17th but his 30-footer at the last put a broad smile on his face - it could well have gone a dozen feet past but hit the middle of the hole and dropped.
"It was going a bit quick. Thank God the hole got in the way. It was downhill, down grain, but it held its line and went in. It was a joyous occasion in the Montgomerie camp," he said.
"I would like to win wherever that might be. It would be great to try and win in America. I always felt to win in America is a very difficult thing to do, on an away patch, on golf courses that are usually suited to the American style of play."
Langer paid tribute to Montgomerie but said he had a plan to get back to the top of the leaderboard on Sunday.