The New England Patriots rookie card signed by Tom Brady in 2000 has been auctioned off for $3.1 million, making it the most valuable football card ever sold on auction. The previous record was set two months ago when someone paid $2.25 million for another card from Brady’s rookie season. There were 32 bidders for the seven-time Super Bowl winner’s card sold by Lelands Mid-Spring Classic Auction which started bids at $750,000.