Manchester City boss Manuel Pellegrini has backed Joe Hart ahead of his side's Premier League opener against Newcastle on Monday.
Hart failed to hit the heights of his 2011/12 season last year and made a severe blunder in England's midweek victory against Scotland on Wednesday.
In the aftermath of the game, England manager Roy Hodgson said that nobody - including Hart - is guaranteed a starting berth in his side.
However, Pellegrini believes Hart is still among the world's best goalkeepers.
Many pundits have said Hart's poor form is due to the 26-year-old not having a real challenge at club level with Costel Pantilimon failing to mount a serious challenge.
Pellegrini, speaking to reporters, said: "I haven't spoken with him - maybe tomorrow we will (speak) - but I think Joe Hart has to demonstrate why he is the best goalkeeper in England every week he plays.
"He is a very important goalkeeper, I have a lot of trust in him.
"Everyone can make an error in one match but personally I have a lot of trust in Joe Hart.
"I don't have any problem with his performance. I am sure he will again this year demonstrate why is the number one in England."
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