There are fears Manchester City striker Sergio Aguero could be missing for longer than expected. Manager Manuel Pellegrini had hoped to have the Argentine back within four weeks but scans have revealed that Aguero, who injured his knee in Saturday's 1-0 win against Everton, has a twisted medial ligament that is expected to take longer to recover from.

The injury is similar to the one David Silva suffered on October 29 and the Spaniard has not played since.

Aguero had expected to be back for the New Year.