American golf fans were left asking how Abraham Ancer wasn't playing for the US Presidents Cup team after he continued their misery at Royal Melbourne.
Ancer was born in Texas and studied in Oklahoma but plays under the Mexican flag, making him eligible for the Internationals.
Pre tournament Cup veteran Adam Scott nominated the debutant as a potential match-winner and Ancer lived up to that billing, banking a second impressive win over the highly-rated US team.
The 28-year-old combined with Australia's Marc Leishman to trounce divisive Texan Patrick Reed and Webb Simpson three and two.
On day one he and South African Louis Oosthuizen hammered Gary Woodland and Dustin Johnson four and three.
Ancer's putting in the foursomes was faultless - the highlight a 12 metre birdie putt on the eighth.
The 2018 Australian Open champion and runner-up in last year's World Cup played at nearby Metropolitan club, Ancer said he felt right at home in Australia.
"I love it here - last year was my first time here and I had some great results," he said.
Leishman said the world No.39 may have caught some rivals by surprise.
"From the outside people probably don't expect him to win and that's maybe an asset in something like this," Leishman said.
"You've got to love the spotlight and he certainly does.
"He's such a good putter and loves being in the heat of the battle."
Australian Associated Press