Blackburn Rovers boss Sam Allardyce believes Stephen Warnock can make England's World Cup squad as a left-back.

He said: "Stephen has a lot of competition in midfield for the England squad hasn't he? But everyone knows his main position is left back and if ever they have a problem with Ashley Cole maybe they see the form Steven is in and knowing he is a left back, they might give him an opportunity to step back in there.

"From our point of view just keep playing the way you are playing for Blackburn Rovers and things will look after themselves. In the long term I do see him as a left back."