Cristiano Ronaldo – Signed Manchester United 2004/05 Jersey – Beckett Authentication - Manchester United jersey in the 2004/05 season design, with RONALDO and number 7, signed by Cristiano Ronaldo on the number. The signature is accompanied by Beckett Authentication Services (BAS) authentication. An impressive collectible from the beginning of Ronaldo’s Manchester United career, when he began establishing himself as one of world football’s leading talents.