FC Porto won the match 3-0 thanks to goals from Evanilson's brace and a goal from Vitinha, but that only told part of the story.
In total, there were two red cards, three goals disallowed by VAR and caused tensions to boil over at the Estádio do Dragão.
One of the red cards was issued to Benfica's Nicolas Otamendi, who elbowed Luis Diaz, before rolling down on the floor clutching his face - one of the most outrageous acts of playing you're ever likely to see.
But not everyone was willing to get involved in the histrionics, with Zaidu Sanusi the one man who seemed content just to do a few keepy-ups while the madness ensued around him.
It all started when Roman Yaremchuk was shown a yellow card for kicking out at Mehdi Taremi, with the latter rolling around to try and get the Ukrainian sent off, sparking a mass melee.
Sanusi's side successfully progressed into the quarter-finals in their pursuit of a league and cup double this season.
Benfica are four points further adrift in third, in what looks set to be a thrilling three-horse race for the title.
The two sides are set to do battle with each other once again, when Benfica return to Porto for the league fixture on 30th December.
Maybe Sanusi can break his keepy-up record in the next game?
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