The players and, above all, Benfica's bench couldn't handle Raphinha's 4-5 in stoppage time. They saw themselves as winners of the match, and Barça, in an electrifying finish, turned the score around.
They took it out on Raphinha, a calm guy more about peace than war. However, they pushed his buttons and found them.
This is How the Brawl Unfolded in the Tunnel
It happened in the tunnel, several Benfica players and staff lunged at Raphinha, who was insulted and returned the insults. There were scuffles and attempts to come to blows, but ultimately it didn't escalate further.
Barça's own players pulled away and protected their teammate at the tensest moment. Police cordoned off the area, bringing the brawl to an end.
It's important to remember that Benfica had it in for Raphinha. Years ago, he defended Sporting de Portugal's jersey, Benfica's main rival along with Porto in the Portuguese competition.
This explains a spotlight Raphinha never sought. He was simply chosen as the target of Benfica's anger.
Asked about the unfortunate incidents, Raphinha told Movistar+: "I am a person who respects everyone. When I was leaving the field, some people insulted me.
"They Insulted Me, and I Returned the Insults"
I returned the insults, I know I shouldn't do it. We all got heated, Benfica's players... preferred to insult me, and I'm someone who doesn't take anything home.
I respect if I'm respected, but if not, I won't stay silent if I'm insulted. It's normal after a match ending like that.
From Benfica's side, who also got a bit heated, they could have understood the situation, but they also preferred to insult me."
Raphinha was the hero of a match the Portuguese saw won from 1-0 in the 2nd minute. They couldn't take the defeat with sportsmanship. They took it out on Raphinha for being an ex-Sporting de Portugal player and because he scored the decisive goal that gave Barça the victory.
Curiously, Barça was only ahead on the scoreboard after the 95th minute.