Italian referee Chief Marcello Nicchi has warned Juventus goalkeeper Gianluigi Buffon to watch his speech before he blasts officials, according to report.
Buffon lashed out referee Michael Oliver during the Champions League second leg quarter-final defeat to Real Madrid after the English referee award a penalty to Real Madrid in the last minute of the match.
The Italian captain was giving his marching orders for dissent after questioning Oliver’s decision for awarding a last-minute penalty kick to the European Champions which sent the Spaniards into the semi-finals.
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The 40-year-old Italian icon later called Oliver "a murderer" with "a rubbish bin" in place of a heart.
"Buffon is a great champion who I hope will go on to have a great managerial career," Nicchi told Italian radio.
"But at certain levels, you have to be careful about what you say. There are always kids listening.
"If it happened in Italy? I would have defended the referee. They can't be threatened either before, during, or after the game.
"After that, there are the appropriate bodies which must judge the conduct of all players on the pitch."
Nicchi warned to avoid the 2006 Calciopoli match-fixing scandal if referees lose their right to vote at the top of the game in Italy.
"To undermine the independence and impartiality of our referees could mean the start of a new Calciopoli," said Nicchi.
"I'm doing everything to calm the referees, but if one day someone goes out on the pitch and doesn't find the referee, I wouldn't be surprised," he added of possible strike action.