Sergio Aguero
Sergio Aguero's injury curse continues as the Argentinean damaged knee ligaments in Manchester City's win over Everton on Sunday.Getty Images

Manchester City manager Manuel Pellegrini has confirmed that striker Sergio Aguero has suffered a knee ligament injury, but is not aware of the extent of the damage.

The Argentinean striker was substituted early in their 1-0 win over Everton in the Premier League on Sunday and the striker's reaction following the injury indicates that it was a serious one that could keep him out for an extended period of time.

This will come as a big blow for the Premier League champions, who have a crunch Champions League fixture against AS Roma on Wednesday, a match which will decide their fate in Europe's elite competition. The Cityzens have to win the match to have any chance of going through to the next phase of the tournament, and will have to do it without their star striker.

The manager confirmed the striker's absence for this week's fixtures and revealed that they will have to wait till the scan is complete to understand the extent of the injury.

"Sergio has a knee ligament problem and we will see tomorrow how serious it is," Pellegrini said, as quoted by the Mirror.

"It is not good news and we will see tomorrow when he [visits the doctor] but he won't be able to play next week."

"We must wait for the doctor to see how [bad it is] but the important thing is he won't be fit for the Roma game. We will see tomorrow, but at the moment, we're not sure [about the length of the injury]," the former Real Madrid manager added.

The manager will be glad that Bosnian striker Edin Dzeko is back in the squad and got some game time ahead of the clash against Roma. Apart from him Pellegrini will have to put his faith in 18-year-old striker Juan Angel Pozo, who came on in place of the injured Aguero and impressed the manager with his performance.