Dan Marino Miami Dolphins Autographed Jersey Signed football jersey from Miami Dolphins quarterback legend Dan Marino - authenticated by James Spence Authentication (JSA) This pro-style football jersey has been hand-signed by Miami Dolphins legend Dan Marino. All autographed memorabilia includes a certificate of authenticity and matching hologram. Hand-Signed by Miami Dolphins legend Dan Marino Signature is bold and clear on the jersey Authenticated with JSA serially numbered certificate of authenticity and matching hologram