Heralded pitching prospect Matt Harvey will debut Thursday in a start against the Arizona Diamondbacks, the Mets announced.
He will be in New York on Monday and will be activated Tuesday.
Harvey, 23, is 7-5 with a 3.68 ERA for Triple-A Buffalo and has 112 strikeouts in 110 innings. He was the team's first-round pick in the 2010 draft and will replace Miguel Batista, who was designated for assignment Sunday, in the rotation.
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