It wasn't long ago that Darrelle Revis was considered the NFL's best cornerback. In fact, as recently as 2014, the 31-year-old Revis ranked third, according to Pro Football Focus' metrics. But he dropped to 30th last season, and currently finds himself at No. 81 through 12 weeks of 2016.

The unofficial beginning of the end started in Week 1, when Revis was manhandled by A.J. Green, and it continued a week later when the Bills' Marquise Goodwin, as's John Breech wrote at the time, turned Revis into a human piece of toast.

And last Sunday, after giving up two touchdowns against the Patriots in a 22-17 loss, Revis suffered an additional indignity: Pity. Tom Brady told reporters that "I thought [Revis] played really well."

That's one way of putting it.

Brady's accolades aside, apparently Revis is ready to call it a career. According to Manish Mehta of the New York Daily News, Revis' decline is due, in part, "to his questionable drive and lack of commitment and discipline to maintain his body."

There's more:

"He's done," a Revis confidant told the Daily News. "If he had his way, he'd be done right now. He doesn't want to play anymore. He's made a lot of money."

Although it's impossible to get inside Revis' head, people close to him sense that the guy, who once ate, slept and breathed football is gone forever, replaced by this sad version. While he can't say for certain what Revis is thinking, the Revis confidant put the cornerback's season this way: "He tanked it."

In October, Revis conceded that his body isn't what it once was.

"Yeah, I am. I mean, not in a bad way. I can still play," he said at the time. "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 added: "I'm not thinking about retirement at this moment. I've just got to continue to take care of my body. Some of the past injuries, they linger. They linger."

Age and injuries seem like as good an explanation for his decline as his sudden disinterest in the game.

Wherever the truth lies, there's no denying that Revis isn't close to the player he once was. That said, whenever he decides to walk away from the game, he'll do so with career earnings approaching $120 million. In March 2015, he signed a five-year, $70 million deal, and he's earning a base salary of $17 million in 2016, according to Spotrac.