He said: "I feel great, I really do, I do not feel like a 35-year-old. I'm still loving it and I actually think I am still improving. You always learn in football, you never stop, that's what it is all about.
"I feel as fit as ever. I can still run around after people, that is not a problem for me. The legs are still with me - I know that. I reckon I have got another three good years in me.
"I have been lucky with injuries in my career, which is a big part of the way I feel at the moment. I've also looked after myself quite well.
"If I don't have an injury next season, hopefully I can make enough games to continue with Portsmouth for another year. Perhaps longer. As long as I serve a purpose in life I will keep playing football and I feel really good at the moment."