He told the Daily Mail: "I really think we have seen some electrifying prospects over the years. We’ve seen them before when I was manager. I was very fortunate to have a young Michael Owen, a young Rio Ferdinand and a young Paul Scholes and a young David Beckham. They were four fantastic players.
"Did they know everything then? And were they as good then as they eventually became? No. They grew and gained experience. I think Sterling, Lallana and Shaw those players will be so much better for the experience of going to the World Cup, especially in two years’ time."