Melbourne's bad run of injuries continues to hurt the Demons, with vice-captain Aaron Davey expected to miss up to eight weeks.

The AFL club announced on Monday that Davey would need surgery on his left knee.

The midfielder sustained the injury in Melbourne's round-nine loss to St Kilda on May 21.

Scans have confirmed cartilage damage, the club said.

The 10th-placed Demons had hoped rest would allow the injury to settle down.

"Surgery is the best option for Aaron and, all things going well, we expect him to return to football in latter part of the season," Melbourne football manager Chris Connolly said.

"He is clearly an integral component to this team, and will be missed.

"Although it's unfortunate for Aaron, we have a number of players performing well in the VFL who are capable of stepping up to make an impact at the AFL level."

Davey joins Jack Grimes, Luke Tapscott, Clint Bartram, Rohan Bail, Colin Garland and All-Australian ruckman Mark Jamar on Melbourne's injury list.

The Demons regain onballer Jack Trengove from suspension for Friday night's clash with Essendon at the MCG, while 2009 No.1 draft pick Tom Scully made his comeback from a knee injury in the VFL last weekend and will be considered for a senior promotion this week.

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