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Manchester City will today discover the extent of Sergio Aguero’s calf injury - with fears he could be out for up to six weeks.

Aguero left the Etihad Stadium on crutches on Saturday, with his right leg encased in a protective plastic boot cast from the knee down.

The striker plundered his 19th goal in 20 games this season in City’s 6-3 win over Arsenal, before pulling up with the problem in the 47th minute.

Aguero was unable to carry on and City boss Manuel Pellegrini said a scan today would reveal the seriousness of the injury to his leading striker.

If City’s worst fears are confirmed and Aguero has suffered a grade two or even grade three muscle tear, the 25-year-old is looking at a six-week lay-off.

City skipper Vincent Kompany has been sidelined for a total of three months this season with groin and thigh injuries, restricting him to nine appearances.

Kompany admitted rushing back too soon from his first injury played a part in his second, longer lay-off, a scenario City will not want to repeat with Aguero.

(Image: Action Images)

Despite his importance to City, Aguero will be given as much time as possible to recover fully, even if that means losing him for a sustained period of time.

Aguero is facing the prospect of missing Premier League games against Fulham, Liverpool, Crystal Palace and Swansea, as well as Blackburn in the FA Cup.