The former Aston Villa stopper admits he wants play international football.
He told the Daily Mail: "My dad comes from Sierra Leone and I've had a couple of invitations to play for them in the national side but it's not the right time.
"The African calendar means playing in January and it would affect my career. We didn't qualify for the Africa Cup of Nations but if we had, then it would have meant going away now.
"I've never been to Sierra Leone. If I go back I'd like to do something there rather than just travel there.
"I regard myself as English - I've played for the Under 21s and got into a few of the senior squads when I was at Villa - but I have a soft spot for Sierra and maybe in the future I will consider playing for them.
"The African games are usually exciting, high-scoring, high tempo and good to watch so I'll be tuning in this month."