Mariano Rivera Signed Long Grey Chit
Mariano Rivera is simply the greatest closer who ever lived, and is one of the most beloved figures in american sports. His autograph is a must have for any true sports fan. This Mariano Rivera autograph is guaranteed authentic and includes a Steiner Sports Certificate of Authenticity and an accompanying tamper-evident Steiner Hologram. The Steiner Seal Means It's Real. Steiner Sports is the Official Memorabilia Partner of Mariano Rivera and the New York Yankees.