Andy Pettitte, whose 18-year MLB career was marked by tremendous highs and one ignominious low, will have his No. 46 jersey retired by the New York Yankees in 2015.

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Pettitte was a starting pitcher and key member of the Yankees dynasty in the late 1990s and first decade of the 21st century. Along with fellow "Core Four" teammate Derek Jeter, Mariano Rivera, and Jorge Posada, Pettitte was present on five World Series teams and started more big games than arguably any Yankee pitcher in franchise history.

Including a brief three-year stint with the Houston Astros, Pettitte retired with a career record of 256-153 and a 3.85 ERA. He finished runner-up for the Cy Young in 1996, and made three All Star games.

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News of the Yankees' decision to retire Pettitte's number was first reported on Twitter, by the pitcher's own son, no less.

In addition to corroborating Josh Pettitte's news,ESPN New York also reported that the Yankees are planning to honor Posada and former centerfielder Bernie Williams as well in the upcoming season.