Oosthuizen’s 64 leads in Mexico

MEXICO CITY — Two of the European Tour’s hottest players brought their best golf to their first World Golf Championship.

Louis Oosthuizen, a world-class player for the better part of a decade, drilled a long iron to 4 feet for eagle on the par-5 15th and had birdies on two of the short par 4s at Chapultepec Golf Club for a 7-under 64 in the Mexico Championship on Thursday.

Right behind were two players unfamiliar to the world stage, though they sure didn’t play like it.

Shubhankar Sharma, the 21-year-old from India and the only two-time winner on the European Tour this season, holed an eagle chip after making the turn and finished with a wedge into 2 feet for birdie and a 65.

“I was very nervous in the morning, but very happy with the way I put it all together,” Sharma said.

Chris Paisley of England, who followed his victory in the South African Open with a pair of top 5s against strong fields in the Middle East, had his name atop the leaderboard for most of the warm afternoon until he came up short of the 16th and made his lone bogey in a round of 65.

“After the win in SA, I didn’t want to just be happy with winning. I wanted to kind of press on and that’s what I did,” Paisley said. “I’m taking that attitude into the rounds, as well. If you get defensive or you back off at all against players like you’ve got this week, then you’ve got no chance of winning.”

Sharma won his first European Tour event late last year at the Joburg Open, also played at altitude, and then last month he closed with a 62 to win the Malaysian Open.

Xander Schauffele also was at 65, while Rafael Cabrera Bello and Kiradech Aphibarnrat were at 66.

This World Golf Championship lived up to its name for at least one day. The top six on the leaderboard came from South Africa, England, India, Spain and Thailand.

Defending champion Dustin Johnson opened with a 69, the kind of round that showed that a slightly softer Chapultepec allowed for low scoring, but there were big mistakes equally available. Johnson found that out on No. 14, his fifth hole of the round. From a cluster of trees, Johnson hit one of them and knew he was in trouble when he could hear the ball go through bushes on the other side of the boundary fence.

Johnson had another shot disappear under a tower. He made six birdies for the round.

Bubba Watson, coming off a victory at Riviera, also had a 69 and had reason to feel even worse. He was leading at 7 under until running off four bogeys in a sixhole stretch at the end of his round.

Women’s World Championship: Jennifer Song shot an opening 7-under 65 to take a two-stroke lead at the Women’s World Championship in Singapore.

The 28-year-old American reeled off seven birdies at the Sentosa Golf Club in a round that was interrupted for two hours by lightning.

Michelle Wie and Ji EunHee (both 67) were tied for second while another nine players finished a further stroke back at 4 under.

No. 2 Lexi Thompson (75) struggled in making five bogeys.