Justin Thomas made a hole-in-one and surged into the lead with a 5-under 66 on a Saturday of high entertainment in the Mexico Championship.
Thomas hit a 6-iron from 239 yards that one-hopped into the cup on the par-3 13th. He added a pair of birdies that gave him a one-shot lead over Dustin Johnson (66), with Phil Mickelson (68) and Rory McIlroy (70) right behind.
That's a world-class leaderboard, and there was so much more.
Johnson, in his debut at No. 1 in the world, was tied for the lead when his second shot on the 16th got stuck in a tree. He walked back to the original spot and hit the next one to 15 feet, and the first ball fell out of the tree as he was walking to the green. He made the putt to salvage a bogey.
Mickelson didn't hit a fairway on the back nine until the 16th hole and at one point had taken as many drops as he had made birdies. Then he birdied three in a row.
He was two shots behind, along with McIlroy, who didn't make a birdie over his last seven holes.
Jordan Spieth set the course record with an 8-under 63 and was among a dozen players within five shots of the lead.
Regained the lead: Michelle Wie, who shot a 5-under 67 and took back the lead in the HSBC Women's Champions in Singapore. Wie last led after the third round of a tournament in 2014.
Won for America: Sam Querrey, who beat Rafael Nadal 6-3, 7-6 (3) in the Mexico Open final and became the first American champion in the history of the event.
Exited mysteriously: Ken Klee, who is out as coach of the U.S. women's hockey team after the team won gold medals at the past two world championships. His departure went unexplained.
Took a shot: San Francisco Giants coach Jose Alguacil, who had surgery for a broken nose and other facial injuries after he was hit by a foul ball in Surprise, Ariz.
Champ Sounders open with loss
Romell Quioto had a goal in his Major League Soccer debut and the host Houston Dynamo scored two first-half goals to beat the defending MLS Cup champion Seattle Sounders 2-1 in a league opener.
Clint Dempsey, who hadn't played a match since August because of a heart issue, scored for Seattle.
Elsewhere on MLS' opening weekend, FC Dallas beat the Los Angeles Galaxy 2-1 in Curt Onalfo's first game with Los Angeles after he replaced Bruce Arena as head coach.
England upsets U.S. women's team
Substitute Ellen White scored on a rebound in the 89th minute and England stunned the United States 1-0 in the second round of the SheBelieves Cup in Harrison, N.J.
It was England's first victory over the United States since a friendly in 2011. It was only England's fourth win in 14 games (4-9-1) against the U.S.
Vonn winds up in second again
Sofia Goggia edged Lindsey Vonn into second place at a World Cup event for the second time in two days, winning the super-G at the 2018 Olympic course in Jeongseon, South Korea, to follow her victory in the downhill.
Goggia's only two career victories came in the past two days.
• Marcel Hirscher of Austria locked up an unprecedented sixth straight overall World Cup title, winning a giant slalom in Kranjska Gora, Slovenia. Hirscher, 28, has an insurmountable lead of more than 500 points with five races remaining.
AROUND THE HORN
Boxing: Keith Thurman built a big lead over Danny Garcia and held on to win a split decision in New York and add the WBC welterweight title to his WBA championship.
Motorcycle racing: Eli Tomac raced to his fourth Monster Energy AMA Supercross 450SX Class victory of the season, beating second-place Ryan Dungey of Belle Plaine, Minn., by 14.2 seconds in Toronto.
Cross-country skiing: Marit Bjoergen won the 30-kilometer classical race as Norway completed an unprecedented sweep of the six women's titles at the Nordic world championships in Lahti, Finland. The highest finisher not from Norway on Saturday was Jessie Diggins of Afton, who finished fifth.
4.22Washington receiver John Ross III ran the 40-yard dash in a record-setting 4.22 seconds at the NFL scouting combine in Indianapolis. Ross broke Chris Johnson's record of 4.24 seconds set in 2008. He ran only once because of muscle tightness in his left leg.