This CUSTOM Kansas City Royals Jersey has been personally hand-signed by Two Sport Legend Bo Jackson. We have added the 1989 MLB All Star Game Patch to the sleeve to make this item even more over the top! This item was signed in the presence of and witnessed by a representative of Beckett Authentication. It comes with an individually numbered, tamper evident sticker from Beckett which can be reviewed online to ensure authenticity. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.