DUBAI, United Arab Emirates -- Lee Westwood took advantage of some shaky play from Rory McIlroy and Thomas Bjorn, shooting a 5-under 67 for a one-stroke lead on Rafael Cabrera-Bello after the third round of the Dubai Desert Classic.
Westwood was three shots behind overnight leaders McIlroy and Bjorn at the start of the round but closed the gap with three birdies in his first four holes. The third-ranked Englishman birdied the 13th for a share of the lead with Bjorn and led when the Dane bogeyed the 15th.
"I got off to a good start," Westwood said. "The only time I dropped two shots was when I hit two poor drives on 6 into the left rough, got a heavy lie and at 8 hit it into the sand on right. Other than that, very solid and gave myself lots of birdie chances."
Coming into Saturday, it appeared Westwood's biggest challengers this weekend would be U.S. Open champion McIlroy and Bjorn, who beat Tiger Woods in 2001 to take the Dubai title.
But McIlroy's tee shot on No. 7 went into the water for his first bogey. He had three more bogeys on the back nine.
"It was pretty ragged to say the least," McIlroy said. "I think the conditions were a little tougher, the wind got up. The greens got a little firmer, pin positions were a little tougher ... just definitely didn't come as easy to me as it did the first couple of days."
With McIlroy faltering, it seemed the 40-year-old Bjorn would take advantage. He took the lead with a birdie at No. 7 and added another birdie on No. 10. But he struggled on the remainder of the back nine after a tee shot in the bunker led to a bogey on 15. Bjorn added two more bogeys in his last three holes.
McIlroy stayed in contention, making three birdies on the back nine, including the 18th. McIlroy said he had a similar experience in Hong Kong where he shot a 65 to win the tournament, so he's confident of claiming his first victory in Dubai since 2009.
"Today is just not going to be a day where you hit it well and you're going to make plenty of birdies and give yourself opportunities," he said. "A day like today, you just have to try to stay as close to the leaders as possible and not let them get away from you. That's what we tried to do today, and luckily I'm only two back."
With 21 European Tour titles, Westwood is a veteran among the three players who trail by one shot. They've earned a combined three titles.
On Sunday, Westwood will play alongside the 148th-ranked Gallacher and 223rd-ranked Siem -- setting up an underdog scenario like last month when Robert Rock beat Tiger Woods in Abu Dhabi.
"I played amateur golf with Lee," said Gallacher of Scotland, who had seven birdies in a bogey-free round. "What you have to do is try is just learn from him and stay with him."
Westwood will tap into his final-round experience on Sunday.
"Yeah, I know how to play with the lead. What did I win, four times last year?" Westwood said, with a wry smile. "When I get a chance, I'm pretty good at finishing off. I've won (38) times (worldwide).
"You know, that's not somebody that's not good with a lead. You get used to knowing what to do; when to press, when not to press, when to be patient."