Don Mattingly 1986 Topps Collector's Series #20 New York Yankees, Rare The Top 5 Essential Don Mattingly Rookie Cards Vintage MLB Promotional Item RARE Don Mattingly Stadium Giveaway Magnet Yankee Stadium, August 31, 1997 Top 5 Rare Don Mattingly Cards After years of collecting Mattingly, always looking for something new to add. Here's a fun piece from what should have been his 2nd consecutive MVP season November 1986 Baseball Card Digest