This card was signed by Preston Mattingly in October 2006 while he was participating in the Arizona Fall Instructional League. At the time he had no cards.
I am the co-founder and designer for www.TheAutographCard.com. Every card that we have on our site was designed for never missing another autograph when a player, of any sport, shows up unexpectedly. They are also perfect for players who don't have cards yet like first round draft picks.