May 23 (Reuters) - Defending champion Colin Montgomerie of Scotland took advantage of a late collapse by American Brian Henninger to seize a three-shot lead after the third round of the Senior PGA Championship on Saturday at French Lick, Indiana.
Henninger tumbled out of a tie for the lead with a triple-bogey at the par-four 16th before Montgomerie finished off in style with a birdie at the last to card a two-under-par 70.
That left Montgomerie at five-under 211, three strokes in front of German Bernhard Langer, who birdied the final two holes for a 69 on the challenging Pete Dye course at the French Lick Resort.