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 shows 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.
Last edited by drcy; 02-02-2014 at 02:59 PM.
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