Lionel Messi's signed thousands of autographs throughout his legendary career ... but how'd you like to own one of his first John Hancock's?! Well, with a fat enough bank account, it can be yours.
Before Messi, now 34-years-old, scored a single goal for Barcelona (he's netted 672 goals), he played for a team named called Newell's Old Boys sports club -- a soccer team for 8 to 12 year old boys -- in Argentina.
Goldin Auctions got their hands on an awesome, 20+ year old identification card formerly owned by Messi .