Bernhard Langer will begin the final day of the Senior Open Championship with a one-shot lead after carding a third round of 66 at Turnberry.
The two-time major-winning German started Saturday in superb form, reaching the turn with four birdies and an eagle.
He then bogeyed the 11th and 15th before responding with a birdie on the par-five 17th and finishing on seven under par overall.
Fellow former Masters champion Fred Couples, who shot a six-under-par 64, is in second place.
Peter Fowler is a further shot behind, while John Cook, Gary Hallberg and Barry Lane are tied in fourth on three under.
