Real Zaragoza winger Jermaine Pennant has hailed the ability of Chelsea fullback Ashley Cole.

The pair were together at Arsenal and Pennant said: "Ashley is probably the best left-back I have played against. He is so annoying - like a little rat.

"You think you have got past him and there he is in front of you again. As soon as me and him cross the white line we lose that friendship, but it would be great to be back in a squad with him.