Sergio Agüero injured his left knee in the second minute of Manchester City's 1-0 win over Everton on Saturday.

Agüero left in tears after twisting his knee in an early challenge.

Manuel Pellegrini confirmed he fears a torn ACL.

“We will know more tomorrow,” Pellegrini said. “At this stage we have to say he will probably miss the next game in Rome, it is very difficult to recover from a ligament problem in three days. Of course it is a big problem for us because Sergio was in a very good moment, we will miss him in Rome, but he is not the only one. David Silva is not yet ready to come back, Stevan Jovetic has a hamstring problem that also needs checking out tomorrow, Edin Dzeko is not fully fit yet and if you include Vincent Kompany, we might have to play in Rome without five key players.

“Considering we had so many missing I was pleased to beat a very good Everton team and get a bit nearer to Chelsea,” Pellegrini continued. “After the Chelsea result at Newcastle the way we won today was important. We did it without our main attacking players but the defence did very well too. I am not going to complain about the number of injuries we have, we have a squad and I will not use injuries as an excuse. But clearly losing key players in December makes life harder. This is always a difficult month, and I am pleased we are still winning and still in touch with Chelsea.

“Maybe you don’t win the title in December but if you are going for the title your results in December can be key.”