Manchester City star striker Sergio Aguero will be out for four to six weeks, manager Manuel Pellegrini said before the team's European Champions League Group E decider against AS Roma Wednesday night.
Aguero injured ligaments in his left knee in the second minute of a 1-0 win over Everton last weekend in the English Premier League, reports Xinhua.
The Argentine is currently Premier League's top scorer with 14 goals.
