Description Mark Trumbo is a professional baseball outfielder and designated hitter; a two-time MLB All-Star and the 2016 American League home run champion. Hand signed and autographed by Mark Trumbo on a PSA/DNA-slabbed 2005 Justifiable rookie card Authenticated by PSA/DNA; the most trusted third-party autograph authentication service in the hobby PSA/DNA Certification Number: 28531576 Verify authenticity instantly at psacard.com Please note: PSA/DNA no longer issues physical certification cards. Authentication consists of the tamper-proof PSA/DNA holographic sticker and a permanent digital COA in their online database Ships free within the United States; carefully packaged to ensure safe arrival A PSA/DNA-slabbed signed trading card combines the protection of professional encapsulation with a directly verified autograph — one of the most compact and widely collected formats in the hobby; learn more about our authentication standard at nicksportsautographs.com/authentication.