Joe Hart insists he is determined to become the best goalkeeper in the world and is learning from Real Madrid captain Iker Casillas.
The Manchester City and England shot-stopper, who has kept 20 clean sheets this season, admits he is adapting his game in order to move up to another level.
And the 25-year-old believes that he can emulate Spain's World Cup-winning keeper by starting to keep his focus for the full 90 minutes.
The 6ft 4in goalkeeper, who is one of six nominees for the PFA Player of the Year, feels he needs to get away from the traditional English approach of rushing out to oncoming strikers to force them to shoot.
"I'm trying to work out exactly how Casillas manages to react to what the forward does, instead of trying to force the striker into a decision, like I have done until now," Hart told The Mail on Sunday.
"It's better doing it his way, using your reflexes rather than trying to anticipate what is going to happen. I'm working on it - it's something I need to learn.
"In our league you know the forward will favour power over placement, so you can make yourself big and be fairly sure that he's going to shoot where you are covering.
"But more and more I'm coming across different strikers or styles of play that require just what Casillas has; quick decision-making and quick reflexes."