Johnson takes two-shot lead at WGC-Mexico

Dustin Johnson took two-stroke lead over Rory McIlroy and Matt Kuchar at WGC-Mexico Championship.

MEXICO CITY (AFP) - Dustin Johnson fired his second straight bogey-free round on Friday, a four-under par 67 that gave him a two-stroke lead over Rory McIlroy and Matt Kuchar at the WGC-Mexico Championship.

Johnson s methodical approach at Club de Golf Chapultepec paid dividends as he overhauled first-round leader McIlroy on a day when 14-time major champion Tiger Woods moved into the top 10 with a five-under 66.

"I ve just done a really good job with controlling my distance with my irons and giving myself a lot of looks at birdies," said Johnson, who had never before in his US PGA Tour career opened a tournament with two bogey-free rounds.

The 2017 WGC-Mexico champion said he enjoyed the challenge of adjusting to the altitude.

"It makes you focus, you ve got to think and you re doing a lot of calculations with the numbers, trying to figure out how far the ball is going to actually go," he said.

McIlroy, who opened Thursday with an eight-under par 63, picked up where he left off with three birdies in his first four holes.

But he found the water for a bogey at the sixth and then made a double-bogey at the par-four ninth, where he was 15 feet from the fringe with his second shot but needed four putts from there.

He signed for a one-under 71 for nine-under 133. He was joined by Kuchar, who opened with four straight birdies in a four-under 67.

Spain s Sergio Garcia and England s Tommy Fleetwood were tied for fourth on 135, Garcia posting a 66 and Fleetwood a 65 that started with back-to-back eagles at the first and second -- both par-fours.

Fleetwood tied for low round of the day with Phil Mickelson, who had opened his title defense with a horrendous 79, only to bounce back with a bogey-free 65.

Woods climbed the leaderboard with a five-under 66 that featured six birdies and an unlikely par at his finishing hole, the par-four ninth.

In a fairway bunker off the tee, Woods produced a vintage recovery shot, cutting a nine-iron around a tree, the ball spinning back some 20 feet toward the hole.

It left him an 11-foot birdie putt that lipped out.

"The ball was sitting down just enough where I didn t think I could clear the tree," said Woods, who first went for his eight-iron but decided it would come out too hot.

"I went back to the nine-iron, I realized  I ve really got to slice this thing, " he said.

"I opened up and gave it as much of a cut motion as I could and it worked out."

Woods had made a scrambling start to his round, rolling in a nine-footer for his first birdie at the 12th. He birdied 14 and got up and down for birdie from a greenside bunker at 15.

He gave a shot back at 17, but drained a 13-footer at 18 to make the turn three-under. He rolled in a 22-footer for birdie at the third and picked up another shot at the fifth to stand tied for eighth -- six shots off the lead -- heading into the weekend.