Melbourne has suffered a blow with co-captain Jack Viney, set to miss the next four to six weeks with a foot injury.

Viney, who sustained the injury during the Dees' 35-point loss to Sydney on Friday night, underwent surgery on Monday to repair his plantar fascia in his foot.

“Jack had an operation this afternoon to release his plantar fascia,” general manager of football operations Josh Mahoney told the club's website.

“This has been an injury that has been carrying for the majority of the season.

“We expect his recovery from this operation to be approximately four to six weeks, based on how quickly his foot can be reloaded post-operation.”