Manchester City boss Pep Guardiola apologised for the brawl that sparked at the end of defeat to Chelsea.
Sergio Aguero sparked the melee with a knee-high tackle on David Luiz that saw him handed a straight red card by referee Anthony Taylor.
Fernandinho was then also sent off for repeatedly pushing Cesc Fabregas, with the Spaniard ending up falling over an advertising hoarding.
It proved a costly afternoon for City, who led at half-time but ended up losing 3-1, and now face losing Aguero for four games and Fernandinho for three.
Guardiola said: "It is a pity it finished like this. It was the way the referee decided. I don't like that, I apologise for what happened."
Aguero has already served a three-match ban this season, imposed retrospectively for an elbow on West Ham's Winston Reid in a game in August.
Taylor appeared to have little option but to send off Aguero, but Guardiola said: "He (Luiz) went down and he (Aguero) touched him. It wasn't intentional.
"Maybe I have to understand many things about the referees here. It's a red card, okay, we are going to deal with that."
He added: "Fernandinho went to defend because the opponent was like this (shoving) his team-mate. Nolito was red card and three games (for that)."