World Golf Championships

Justin Thomas uses an ace to move into lead at Mexico Championship

Justin Thomas uses an ace to move into lead at Mexico Championship

Justin Thomas hit a six-iron that one-hopped into the bottom of the cup. Dustin Johnson hit a wedge that never came down from a tree. In one of the 10 fairways that Phil Mickelson missed, a spectator apparently ran off with his golf ball.

Even better than the wild action Saturday in the Mexico Championship was the promise of more to come.

Thomas, going for his fourth PGA Tour victory of the season, rode a hole-in-one to a five-under-par 66 to take a one-shot lead over Dustin Johnson at Chapultepec Golf Club. Right behind were Mickelson and Rory McIlroy, who saw his momentum stall when his flip wedge on No. 12 struck the pin and spun back.

Such a world-class...

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