Reflecting on last week's Champions League victory at Anfield, Cole said: "He is hard because, when he goes inside, I have to trust our winger to stay with their right-back.
"I can't go tight on him because, if I do, and they play a one-two, I am out of position.
"He is always moving into the hole behind the striker but, when I have Michael Essien behind me covering inside, it does make it easier.
"Of course he did the back-heel for their goal but I have certainly enjoyed playing against him this year. I can't remember him contributing too much.
"It is good to play against players like that; this is a great league and I think he must be one of their best players."