The midfielder took aim at Mario Balotelli and a few other Azzurri players as the team crashed out of the World Cup group stages for the second time in a row
Cesare Prandelli's side failed to make it out of Group D after Tuesday's 1-0 loss to Uruguay saw them finish third - the second consecutive World Cup in which Italy have failed to reach the last 16.
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"There were certainly components that affected the result, like the heat or the refereeing, but we must not cling to these things," said De Rossi.
"We must forget about all this quickly. Actually, I take that back: we should remember well what went wrong and begin again with real men.
"We need real men, not Panini stickers or characters. These are of no use to the national team."
Meanwhile, captain Gianluigi Buffon felt it was time to reflect after a disastrous campaign in Brazil.
"As a group and as a nation, it is a very sad day," he said. "It is a day of failure and is something that saddens us very much.
"The defeat should make us all think and let us take a good examination of our conscience."