In his quest for his first major championship, Lee Westwood dropped a shot on No. 3 and his lead at the British Open is down to one stroke.
Westwood, who parred the first two holes, found fescue off the tee at the third, and more long grass with his second. He chipped to about eight feet, then 2-putted for bogey to dip to 2-under par for the championship.
Henrik Stenson birdied the first and third to move to 1-under and he is alone in second place at Muirfield.
Ian Poulter is one of eight players in the top 13 on the leaderboard looking for his first major championship title. Poulter has the best round on the course going.
Poulter is 5-under par through 13 holes and that has moved him to even-par for the championship. He is currently tied for third place.
He stands alongside Hunter Mahan, who found sand off the tee at the second and that led to a bogey.
Three-time champion Tiger Woods 3-putted for bogey at the first and fourth and is three off the pace at plus-1.
Jason Dufner has posted the best round since Thursday as he closed with a 4- under 67. The American finished the championship at plus-8 and he is two behind the clubhouse leaders Harris English and Eduardo de la Riva.
English shot 70 and de la Riva carded a 69 as they ended at 6-over 290.