Team USA Jersey Question

[GoCrazyFolks76]

I just picked up this Team USA jersey from the Mike Shannon collection on Lelands, and i was wondering if you guys could help me identify if this was a game used vs issued vs retail jersey, what year the jersey was from, and maybe some help with the signatures.

I know one of them is Stephen Strasburg, but I haven't been able to identify the others.

Thanks!

Mark