By Lynn Burkhead, OutdoorChannel.com
Memories, on and off the field, are among the most powerful currencies that the game of football can provide.
From the intensity of offseason workouts in broiling heat to the camaraderie of the locker room throughout a long season to the thrill of last-minute, late-season victories in front of a packed house, those memories are rich and powerful.
And for most, the memories only get stronger as the inevitable passage of time occurs in life. But not for all.
In a contact sport known as much for its jarring collisions as it is for its glorious runs, spiraling passes and gravity-defying catches, the memories fade for some in cruel irony as the cumulative effect of the game...