Hall of Famer George Blanda set the standard in the NFL for playing solid football past what's considered one's prime.
For those not in the know, Blanda was a quarterback and kicker who played until the age of 48, retiring in 1975 after 26 years in the league.
He was the rarity back then. Today, playing football beyond 35, and doing it at a high level, is not uncommon.
With advances in exercises science and sports nutrition, many players with the proper motivation and dedication can maintain outstanding careers, even into their 40s.
The following is a Baker's Dozen list of NFL players who have stopped Father Time and are still playing solid football past the age of 35.
Note: Players like Isaac Bruce who are retiring, but haven't officially announced it yet, are not on this list.