Lee Westwood was back into a tie for the lead as the third round of The Masters Tournament gathered pace at Augusta National.
After finishing his second round with a double-bogey six, the World Number Three birdied the long second to join Americans Jason Dufner and Matt Kuchar on five under par.
Ryder Cup star Kuchar holed a bunker shot on the fourth and then hit his approach to the seventh to within a few feet.
Dufner, who almost won the US PGA Championship last August and is yet to win on the US PGA Tour, also birdied the second, but bogeyed two holes later after going right of the green.
Playing partner Fred Couples, the oldest man to set the pace in The Masters at halfway aged 52, bogeyed the first two holes and then double-bogeyed the fifth, while Sergio Garcia, who had been one behind overnight like Rory McIlroy and Westwood, dropped shots on three of the first four.
Justin Rose made a big move from 24th to joint third by covering the first 14 holes in three under, but then was desperately unlucky on the 530 yard 15th.
He went for the green in two and just made it, but after appearing to come to rest the ball started rolling back and finished in the water. It cost him a bogey six, but he was right in the thick of the action a month after grabbing his first world championship title.
Worse was to come for McIlroy and Rose. The former three-putted the seventh for yet another double bogey and was 30th, while Rose four-putted the 170 yard 16th for a double bogey five and slumped to 17th.
Dufner had trouble himself, three-putting the sixth to leave Westwood and Kuchar sharing top spot.
