Butland is aiming to push himself into contention for Roy Hodgson's World Cup squad after finally making his full Stoke debut.
He said: "The World Cup has always been my focus. Having tasted the England set up before I know what it's like, it's the greatest feeling ever to play for your country.
"I'm focused on getting back into that squad, and if I was to make the World Cup it'd be a target achieved.
"But I need to be playing in the Premier League and with a good quality of performance if I want to go to the World Cup.
"They're playing at the top level regularly and if I can match that level of performance and perform even better then I've got a chance, if not it's going to be difficult.
"If I can knock on the door and say 'I'm in this form, I want to go' then hopefully that comes around."
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