Moya retires at ATP Finals

I met Moya at the US Open a few years back and got his autograph.

I realized it's not that fancy of a signature, but if you watched him sign the TV monitors, you can tell that's just his actual handwriting I guess =)

He was an inspiration and mentor for Nadal and most of the Spanish tennis players.  A great forehand and always a threat on the tennis court. Moya will be missed by the whole tennis world.

Anyone have any idea how much this card is worth now that Carlos Moya is now retired?