Alfonso Soriano ranks as one of the most talented and exciting players in Major League Baseball today. Soriano who kicked off his career as an infielder for the New York Yankees has returned back to the Yankees coming from the Chicago Cubs. Soriano sparkles with the glove and the bat and is always a threat to steal a base; in fact the perennial All-Star entered the exclusive 40-40 club in September 2006 becoming one of only four players to ever hit 40 home r and steal 40 bases in a season. This Alfonso Soriano autograph is guaranteed authentic and include a Steiner Sports Certificate of Authenticity and an accompanying tamper-evident Steiner Hologram. The Steiner Seal Means Its Real. Steiner Sports is the Official Memorabilia Partner of the New York Yankees.