Elevate your collection of Seattle Mariners memorabilia with this Felix Hernandez autographed Navy Mitchell & Ness Cooperstown Batting Practice Jersey. With eye-catching team details and the legendary pitcher's distinct signature, there's no better way to commemorate one of your favorite players in the sport. 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.