Angered by the decision, Buffon said Oliver had a "trash can" instead of a heart, while the 40-year-old dismissed the Englishman's ability to referee on the biggest stage - a tirade with which Del Piero disagreed.
The hosts gradually established a pattern of dominance and Mandzukic gave them the lead on the stroke of half-time when he volleyed home from substitute Douglas Costa's cross. It was a week that allowed me to experience strong emotions, beautiful, pure adrenaline.
Although Buffon has now had time to reflect on the incident, he has no intention of apologising.
Buffon looks to have won all he can with the Old Lady after his acrimonious exit from the Champions League recently; a straight red card in the dying seconds at the Bernabeu brought the curtain down on the one competition that Buffon has never won.
"I sent him a nice congratulatory text for his save on (Arkadiusz) Milik at the end", Buffon added.
After the match, Buffon harshly criticised the referee for what many believe was a clear penalty, but he has since taken a difference stance on the matter, although he still feels Oliver should not have awarded the spot-kick.
"Buffon is a great champion who I hope will go on to have a great managerial career, but at certain levels you have to be careful about what you say".
Sassuolo went ahead for the first time through Politano's 64th-minute effort before Diabate struck again to rescue a much-needed point for Benevento. There are always kids listening.
"I think a young referee was sent to officiate an important match, although he's already well established and has shown his courage". They can't be threatened either before, during, or after the game.
English referee Oliver meanwhile has been offered police support after he and his family were abused by social media trolls.
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He said the global economic recovery was "marred and disrupted by unseemly protectionist noises from the Atlantic basin". China matched the United States tariffs with plans to levy duties on $50 billion of USA products.