Essien joined Chelsea from Lyon for around £24million two years ago.
He told The Sun: “Playing in defence was not something new for me. I was once a centre-back and I played a lot of positions before I moved to Europe.
“That is why I am comfortable to play in any position my team requires of me.
“I am a passionate player. I have to give 100 per cent every time. Nothing less will do. But I don’t think I’ve reached my limit yet.”
