Adrian Peterson acknowledged it was time for a change of scenery leaving the Minnesota Vikings for the New Orleans Saints.
"It was time for a change of scenery," he says. "I wanted to do something different. I knew a change was needed."
There are doubts as to whether Peterson can stay healthy and stay productive.
"Yes, the doubt motivates me," Peterson says. "I'd be lying to say it doesn't. You want to do things people say you can't do."