The average NFL career lands between two and three years. Many players don't even last a single season before they show they don't have the tools to be successful in the NFL.
Other players have long successful careers. Some become superstars, make millions of dollars, have many endorsement deals and go on to successful careers after they leave the gridiron.
Today, we are not going to talk about the players who don't survive the first year, but those who have had the long careers and are now nearing the end of the road.
It happens to EVERYONE. No player can escape it—no matter how hard Brett Favre has tried.
If you look at the list of the greatest players ever,—Marino, Rice, Taylor, Lambert—all of them eventually slowed down, became a shell of their former selves and had no choice but to walk away from the game.
Here are 10 players in the NFL who I believe are about to (or recently have started) show us their decline is closer than people would like to believe.
Also, just for fun, I am going to tell you what I believe these guys will be doing after they retire.