The Republic | azcentral.com

Washington Redskins running back Adrian Peterson reached a personal milestone last Sunday when he rushed for the 100th touchdown of his career in the Redskins' season-opener victory over the Arizona Cardinals.

He passed Cleveland Browns legend Jim Brown to become 10th on the all-time rushing list, but Peterson isn't settling for the career milestone.

The 2012 Most Valuable Player believes he's got three to four more years in him to become "the greatest player ever."

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"Three to four more years would be ideal," Peterson told ESPN. "Not to say it hasn't been done before, but not at a high level. So of course I plan on playing three to four more years, and I plan on playing those years at a high level as well."

Peterson, 33, is playing in his 11th NFL season and wants to eclipse iconic running backs such as Tony Dorsett, Emmitt Smith, Barry Sanders, and Walter Payton. His ultimate career goal is also to win a Super Bowl.

"The best player ever to play is my mindset," Peterson said. "Being able to sit back and say I had a great time playing the game I love and I won a world championship and I was the best at my position."

The seven-time All-Pro running back and former Cardinal proved last week he's still an offensive weapon in his advanced age. Peterson rushed for 96 yards in 26 carries.