Is early retirement going to become the norm in the NFL?

Rob Gronkowski was speaking to a group about his advocacy of players being allowed to use CBD products to recover from injuries, when he said football was taking the life out of him, similar to what Andrew Luck said when he retired. We saw early retirements with Calvin Johnson, Chris Borland, and Patrick Willis recently…..is this going to be the norm? Is Tom Brady a one-of-a-kind now in today’s age?

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