Aguero sustains hamstring injury

Manchester City could be without striker Sergio Aguero when the club meets Arsenal in its next league game on Jan. 13.

The Argentina international scored a goal in City's 3-0 win over Stoke City on Tuesday, but limped off the field with a hamstring problem before the final whistle.

Manager Roberto Mancini said that he doesn't believe the injury to be serious, but has said that Aguero will take no part in the club's FA Cup match against Watford this weekend.

Aguero has already missed one month this season because of a knee injury, but he is second on the team with eight goals in 18 league appearances.