Important defender Easton Wood could miss up to a month after sustaining a quad injury at training last week.
The former skipper was on track to play in round two against St Kilda, before picking up the injury on Thursday.
Wood’s injury is similar to the quad concern sustained by fellow defender Taylor Duryea leading into the round two clash.
“Easton and Taylor have minor strains to a muscle in their quad that is responsible for accelerations and kicking,” medical services manager Chris Bell said.
“Both players are on track to return to playing in the next 3-4 weeks.”
Small forward Ben Cavarra will also miss a couple of weeks, after having surgery to repair a hand injury.
Cavarra was originally an emergency for round two, before being replaced by Toby McLean.
“Ben had his hand stood on during training on Saturday morning,” Bell said.
“This broke one of the bones in his hand, and he was required to have surgery that was completed yesterday. The surgery went well, but we expect Ben to miss the next 2-3 games.”
Roarke Smith, who was unavailable for round two will return to full training this week.
Roarke Smith (soreness) – test
Ben Cavarra (hand) – 2-3 weeks
Easton Wood (quad) – 3-4 weeks
Taylor Duryea (quad) – 3-4 weeks
Riley Garcia (knee) - indefinite