Custom on-field style jersey. Everything is sewn on, size XL. Has been hand-signed by Sammy Sosa.The lot / autograph(s) includes an official Beckett Authentication Services serially-numbered hologram and matching COA for authenticity purposes. The signing of this item was witnessed by Beckett.Authentication: Beckett COA Samuel Kelvin Peralta Sosa (born November 12, 1968) is a Dominican American former professional baseball right fielder. Starting his career with the Texas Rangers, Sosa became a member of the Chicago Cubs in 1992 and became one of the game's best hitters.