MESA, Ariz. - Pat Venditte, the Oakland Athletics' ambidextrous pitcher, recorded a groundout throwing righthanded in Tuesday's Cactus League opener against the San Francisco Giants and then a strikeout throwing lefthanded.

Venditte had been in the Yankees' system until last year. He was signed to a minor league contract by Oakland on Nov. 18, 2014.

Called on in the third inning of the exhibition game, the 29-year-old retired the only two batters he faced.

Pitching righthanded, Venditte got Justin Maxwell to ground out to end the third. Then, pitching lefthanded, he struck out Brandon Belt leading off the fourth.

Venditte uses a specially built six-finger glove that has two thumbs, so it can be used on either hand.

"I was warming up lefthanded in the bullpen, but just before I came in, I took a couple of extra throws righthanded because of Maxwell," he said.

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Venditte, who grew up in Omaha, Nebraska, and attended Creighton University, is a natural righthander who said he started throwing with his left hand when he was 3 years old.

When someone said Venditte's performance was impressive, he responded: "It's only day one. We have a long way to go."