Darrelle Revis‘ 2016 season demonstrates how the brutal nature of the NFL can break a player down at a moment's notice.

Over the last few years, Revis has been the best cornerback in the NFL. The seven-time Pro Bowler has been voted to the NFL's All-Pro first-team five times. He gained the “Revis Island” moniker after shutting down some of the game's best receivers in one-on-one coverage on a regular basis.

Other great corners emerged, but Revis remained as one of the best into his age-30 season. But, this year, things have turned for the worst.

Revis has regularly been beaten deep in 2016, watching the likes of A.J. Green and the lesser-known Marquise Goodwin blow by him for huge gains.

It's evident that Revis' abilities have diminished this season, and he's not afraid to admit it.

That doesn't mean he's ready to hang up his cleats, though. From Kimberley A. Martin of Newsday:

“My body’s breaking down,” the Jets cornerback told Newsday.

“Yeah, I am. I mean, not in a bad way. I can still play,” Revis said, smiling. “It’s just, I’m breaking down. I’m 31. How many corners are 31 right now in the league? The league’s getting younger. I know [Vikings cornerback Terence] Newman’s still playing [at 38], which is impressive. But I don’t know how he’s doing it.”

Revis even admits to gaining a few pounds in the offseason, as multiple commentators noticed in the early-going:

He also acknowledged he had a “weight problem” after undergoing wrist surgery in the offseason. How many extra pounds was he carrying?

“A few,” Revis said playfully.

While his physical tools are escaping him, Revis' football sense is still top-notch. He can still be productive, but Darrelle knows his “Revis Island” days of Cover Zero are behind him:

“I don’t do that no more,” Revis said. “But I did that for a number of years. When you play Cover Zero on some of the best receivers in the world, it takes a toll on your body. And your coaches have confidence to say we trust that you’re going to shut down this guy that had 200 yards receiving and the week before he had [more]. We trust you with that job. So it’s hard. It’s a lot.”