Sounds like a guy about to retire to me:
Season over, future unclear, for Redskins' Portis - NFL - Yahoo! Sports
“I have to put the time into rehabbing and continuing to do what the doctors say, but at the same time, to have the opportunity to play for eight years and play and compete and not miss many games … if it’s my time and I look back today, I think I had a great career. No one wants to finish on an injury, but at the same time I enjoyed it and I would love to come back.”
“Do I think there will be change? I do,” Portis said. “And if I’m part of that change would I be sad and devastated? I won’t. I think I’m appreciative of everything Mr. Snyder and the Washington Redskins have done for me, the opportunities they gave me.
“I’m 28, man. I’m not going to be devastated: ‘Oh, man, football is over.’ I enjoyed it. I had fun doing it. I gave everything I had doing it. I did it to the best of my ability. The day that I sit down and I look back on my career I think I will enjoy the highlights. If I get to continue and I’m not in D.C. and I have to play for someone else, I will give it all I got there as well.”