Mariano Rivera Personalized MLB Baseball "To Alexa Happy Graduation"
Legendary Closer Mariano Rivera personally hand-signed this MLB Baseball and personalized it To Alexa,Happy Graduation. 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.