The Azzurri captain stated that the young England star can be one of the finest shot-stoppers of his generation if he continues to make as few mistakes for club and countryItaly goalkeeper Gianluigi Buffon has said that his England counterpart Joe Hart can become one of the best in the world.
Speaking ahead of Sunday's clash between the sides, the Azzurri captain lavished praise on the Manchester City no.1, as well as Germany's Manuel Neuer and national team-mate Salvatore Sirigu.
"Together with Neuer and Sirigu, he can become the best goalkeeper in the world," the 34-year-old told reporters.
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"The difference between a normal goalkeeper and a great goalkeeper is the attention to detail, not to commit mistakes during one season."
He also picked out several English players that he believes pose a threat to the Nazionale's semi-final ambitions.
"Wayne Rooney has charisma and is a leader, dragging the team along with him, while John Terry, Steven Gerrard and Ashley Cole are all players who know how to win."
Terry and Cole won the Champions League with Chelsea this season, and the Juventus man compared the Three Lions' current playing style to that of the West London outfit.
"Chelsea have played well in defence against Barcelona and Bayern Munich," he acknowledged.
"Probably, Bayern and Barcelona are the stronger teams but Chelsea won the match.
"I think, in this way, we can find similarities between England and Chelsea."
The game in Kiev kicks off at 20:45CET.