Roma coach Jose Mourinho was furious after their 3-2 derby defeat to Lazio.
Sergej Milinkovic-Savic, Pedro and Felipe Anderson struck the goals for Lazio, with a Roger Ibanez header and Jordan Veretout's penalty setting up a tense finale.
At the final whistle, Mourinho held an on-field meeting with his players.
He later stated: "What we said stays between us. I wanted to immediately do the talk there, but with the same intimacy as the locker room.
“Let me say something positive first, which is that Italian football has improved a great deal from 10 years ago. The quality of football, the attacking approach, the desire to win, has all improved.
“Unfortunately, a fantastic game was ruined by the referee and VAR, who were not at the right level for this match.
“The second goal could've been 1-1, it went to 2-0. The second yellow for Lucas Leiva was important too, because playing against 10 men makes a big difference. Pellegrini got a red, today Leiva got nothing.
“I think my team was the best on the field today. When you concede three goals, you made mistakes, but the second and third were counter-attacks and the second was a situation where the team was expecting a penalty in favour and not a counter against.
“We dominated, we gave Lazio huge problems, they controlled the final minutes the way they wanted to, and because the referee allowed them to do so."
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