The defender is coming back from long-term injury this month.
He said: â€œI haven't set any targets, you just have to see how long your legs will carry you.
â€œThose decisions are not yours to make. The hope is that you can carry on forever but everyone knows it's not possible and your body will naturally decline.
â€œI think whoever is at the club, the manager and the other people, will eventually make that call.
â€œThe onus is on the individual â€“ myself â€“ to live my life right and be as fit as I possibly can so I can look at myself in the mirror when the times comes when they say 'you're not for us any more' because I'll have given it everything I've got."