Elevate your collection of Baltimore Orioles memorabilia with this Ryan Mountcastle autographed White Nike Replica Jersey. Featuring eye-catching team details with the star first baseman's signature and a rallying team inscription, this is a must-have both for serious collectors and dedicated fans. Obtained under the auspices of Major League Baseball, it also includes an individually numbered, tamper-evident hologram that can be verified online to certify its authenticity.