This game-used jersey was personally hand-signed by David Ortiz, John Farrell, Koji Uehara, Junichi Tazawa, Jake Peavy, Shane Victorino, Xander Bogaerts, Felix Doubront, Clay Buchholz, David Ross and Mike Napoli. It has been obtained under the auspices of the MLB Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individual numbered, tamper-evident hologram from Fanatics Authentic. It can be verified by its numbered hologram at MLB.com. Please note that this game-used jersey may have imperfections caused by in-game play.