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Reds' central defender Osama Malik has been ruled out for up to four weeks with a hamstring injury.

Malik suffered the injury in his side's 0-0 draw with Newcastle on Sunday.

The 25-year-old was replaced by Jordan Elsey just eight minutes into the match on the weekend.

It is a huge blow for United who currently sit bottom of the table without a win and this week face a red hot Melbourne Victory at Etihad Stadium.

The Victory have not lost to Adelaide at Etihad since 2006.