Quote:
Originally Posted by drcy
An NFL COA is considered reliable. The game ready balls are covertly marked before the game. If your COA is from NFL/PSA, then it means the ball was marked with PSA's synthetic DNA beforehand. As the Giants story show us, nothing's ever 100% foolproof, but your ball will be forensically tagged as a game ball. It's not a situation where a fan in the stands can switch a ball with one he brought from Walmart.
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You can't actually buy one from Walmart - I was there yesterday and they don't sell official NFL balls. Oddly, their sports area banner shows a picture of an official NFL ball.