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Yordan Alvarez Autographed Official MLB Baseball Houston Astros "2019 AL ROY" Beckett BAS Witness Stock #215398 giants This is a 1999 SPXThis is an Official MLB Baseball that has been hand signed by Yordan Alvarez. This item was inscribed "2019 AL ROY." This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper proof witness sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper proof sticker with a physical certificate. A certificate can be printed on