Auction: How much is the napkin signed by 13-year-old Leo Messi when he joined Barcelona worth? | Israel today. The auction house "Bonhams" admits that this is one of the most interesting items they received.
According to estimates, the collectors are about to put their hands very deep in their pockets for the rare item. On December 14, 2000, the very young boy, Leo Messi, officially joined Barcelona's soccer academy and the rest is history. Horcio Gaioli, who represented Messi at the time, has kept the Napkin in the safe.