A New York Yankees Unframed 16x20 Yankee Stadium MLB Pano Canvas hand signed by Don Mattingly. The item and signature are in excellent condition. Don Mattingly is a former Major League Baseball first baseman and manager, best known for his playing career with the New York Yankees. Mattingly played his entire 14-year MLB career (1982-1995) with the Yankees. He was a six-time All-Star, nine-time Gold Glove winner, and the 1985 American League MVP. AUTHENTICATION: The item is accompanied by a JSA Certificate of Authenticity - JSA Serial Numbered Hologram -