Buffon stood face to face to protest against the last gasp penalty awarded against his team in the last minute of their second leg quarter-final against Real Madrid at the Santiago Bernabeu, Wednesday night.
Real were beaten 3-1 by Juventus with Cristiano Ronaldo slotting an injury-time penalty to advance 4-3 on aggregate after winning the first leg 3-0 in Turin.
Buffon described it as "a tenth of a penalty", calling the incident "dubious".
"I'd never seen a human being with the courage to give a penalty in such a situation in the 93rd minute". I don't know if this will be the last game in the Champions League for him.
"I'm disgusted more and more with this football world, because when you make an effort like that, a referee can not give a penalty like that in the 93rd minute and destroy people's hopes". "It means you don't know where you are, what teams are facing off, what players are involved".More news: Man told woman he was a rapist before assault
But Allegri was more calm with his analysis of the late decision, and would not get bogged down in questioning why VAR had not been used in the Champions League yet.
Buffon said: "There must be some sensitivity to understanding the importance of some moments and if you do not have this sensitivity to what's going on in the game, you're not worthy of being on the pitch". Did Gianluigi Buffon deserve to be sent off for his reaction?
"You can not ruin the dreams of a team".
"Real Madrid deserved to go through over the two legs", the 40-year-old Italy legend added. "We have to be stronger than these things and let them fortify us".
Replays were inconclusive on the extent of Benatia's contact on Vazquez, with the defender protesting his innocence.
Buffon had been the star of the show as he showed why he's still one of the world's best, despite his age, as he pulled off crucial saves to keep Juve's hopes alive.