Jason Dufner has a two-shot lead in the US PGA Championship as he approaches the back nine at Oak Hill.
The American birdied the fourth, fifth and eighth holes to move ahead of playing partner Jim Furyk, who is going steady on nine-under-par with one birdie and one bogey to his name.
Henrik Stenson's challenge got off to the worst possible start as he dropped a shot at the first, but an eagle at the fourth got him back on track.
Another set back came at the seventh, but he responded immediately by posting three at the par-four eighth and he is currently eight-under-par.
Scott Piercy holds the clubhouse lead on five-under-par, with Adam Scott (-7) and Jonas Blixt (-6) still on the course.
