Game Used / Game Issued. Includes Letter of Authenticity. This jersey is a game use / game issued jersey worn by 2006 World Series MVP David Eckstein. It includes a Letter of Authenticity signed by Shannon certifying that the jersey is “Signed and Game Worn” (see picture above of the LOA). The wash tag appears to have been cut, and since there is. The jersey is also autographed by Eckstein on the back #2 – and it’s a GREAT signature! This was one of the jerseys that Mike hung up in his famous downtown restaurant – Mike Shannon’s. Louis Cardinals home jersey is a very desirable jersey because of the ...