Meet Mr. Irrelevant, 1969.
He was drafted by the New York Jets -- No. 442 overall -- and enjoyed a long, fruitful career. At 6-foot-4, 245 pounds, he was an intimidating presence, a natural leader and supremely confident. He prided himself on outworking the competition, allowing him to reap handsome financial rewards.
His name is Fred Zirkle, and he never played a down in the NFL. Never showed up for training camp, as a matter of fact.