The joke among experts and fans is that the NFL actually stands for "Not For Long," even for the most outstanding players.

To prove this point, all you need to do is look back at the Super Bowl 50-winning Denver Broncos squad and compare that roster with who is still playing on the 2020 team.

Denver has played four seasons since hoisting the Lombardi Trophy. Now, only four players remain on the squad.

According to a USA Today article, 16 players from the 2015 squad have formally retired, while the other remaining players have moved on to other teams or are currently free agents.

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