It took the Saints just four games to know that 32-year-old Adrian Peterson wasn't going to work out. So they sent him to Arizona where the running back is still looking to recapture the form that made him one of the league's best players from 2007-2015.

And while New Orleans may have given up on Peterson -- Saints coach Sean Payton called the decision to trade Peterson "common sense" -- the Cardinals' newest running back insists he can play another four or five seasons.

"I have so much left," Peterson said Wednesday, via AZCardinals.com's Darren Urban. "I have a lot left in the tank. Stay tuned, and you'll be able to see it first-hand."

Perhaps Peterson should first worry about getting right in 2017. In four games with the Saints, he totaled 27 carries for 81 yards and no touchdowns. His longest carry went for 11 yards and he never averaged more than 3.7 yards per carry in any game. And this is after he played in just three games last season because of injury, and managed 1.9 yards per carry. Juxtapose that with his career average of 4.8 yards per carry and it's easy to understand why the Saints were happy to ship Peterson out west for a conditional draft pick.

Last June, some two months after the Saints signed Peterson to a two-year deal, his new teammates marveled at how impressive Peterson looked during offseason workouts.

"He's a stud, man. He looks the part," Saints quarterback Drew Brees said at the time. "There's something about handing the ball off to that guy and watching him run through the hole and take on anybody who tries to tackle him."