I also found this lurking in the box of Moments & Milestones. I had never heard of Martin Prado before, but he looks to be a halfway decent middle infielder for the Braves.
Much like his quick scribble of an autograph, Martin's place in major league baseball is uniquely his. On September 12, 2007, he hit a ball in play, dropped his bat and headed towards first base. The bat stood perfectly upright.
No matter what Martin does the rest of his career, that will probably be what he is known for.
As for the card itself, I'm not a fan of players that sign an autograph where only one letter is actually legible. The card looks nice though.