Includes Steiner Sports Certificate of Authenticity Zach McAllister is the Yankees top-rated pitching prospect in the minor leagues. McAllister pitched for triple-A Trenton in 2009 posting a 7-5 record with a 2.23 ERA after a season where he went a combined 14-9 with a 2.09 ERA. Zach McAllister looks to be a bright future pitcher for the New York Yankees and could make his MLB debut as early as 2010. Zach McAllister has hand signed this Major League Baseball which comes complete with a Steine