Peter Shilton has told Celtic goalkeeper Fraser Forster he must head south for the Premier League if he wants to forge a career with the England national side.
The 25-year-old Forster, who recently broke a 92-year-old Celtic record when he went 11 successive games without conceding a goal, won his only international cap against Chile last November.
Shilton, who won a record 125 caps for his country, said: "I don't want to knock Scottish football, but at the same time, there is no doubt that if Fraser was playing for a Premier League club week in week out and getting tested he would be in a better position than just standing between the sticks for Celtic and having very little to do every week.
"As a goalkeeper, you always need to be tested and he isn't being tested at Celtic now that they are out of the Champions League.
"He didn't look out of place during the Chile game. He is a big lad and I like his attitude. He went down a bit early for the second goal.
"You could see he was really disappointed and I like that sort of attitude."
It appears that, with Joe Hart restored to Manchester City's line-up and Ben Foster fit following a foot injury, Forster and Norwich's John Ruddy are contesting the third goalkeeper's jersey in Roy Hodgson's squad - a view shared by Shilton.
"I think Forster may get another half in the next couple of friendly games as Roy will probably experiment," he said.
"The goalkeeper position is vital because anything could happen at a World Cup and your number three could get a chance. It doesn't have to be an injury, it could be illness."