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Does anyone know if any of these running backs sign authentically through their team address? I am trying to collect my favorite NFL running backs!!

Frank Gore
Kevin Faulk
DeAngelo Williams
Maurice Jones-Drew
LaDainian Tomlinson
Clinton Portis
Steven Jackson
Chris Johnson
Ray Rice

All the help I can get is welcomed, even if it is to say that one of these players do not sign authentically.
Thanks
Cody

I've seen a couple Frank Gore successes, but not recently.

Do you think there is a good chance of him signing? I want to send him a rookie card to sign and I don't want to let it go to waste.