There is nothing better than getting a unexpected mail day and when that mail day is an Upper Deck NPN (no purchase necessary) mail day, you know it's going to be good. This particular one is from the 2013 USA Football.
I think this is probably the sickest patch I own. This is also a great card to have because it's Upper Deck's version of a prospecting product. This one is football. You just never know who could turn big.
Have you ever received an Upper Deck NPN mail day? What's the best card you have gotten?