Pressed over comparisons between the City stopper and Buffon and Casillas, Capello gave his new first choice the official seal of approval.
"I worked with Casillas and Buffon and Joe Hart is good, a really good keeper," said Capello.
"Both the two keepers we had who stayed with us (Hart and Ben Foster) are in really good form.
"Hart is good. He is young. He can improve. He has to work but he has the personality a keeper needs."