Essendon's Courtenay Dempsey has been struck by injury again, with the defender injuring his hamstring in a VFL practice match on Saturday.
The Essendon website reports that Dempsey left the field late in the fourth quarter against Richmond, in what was just his second game back after suffering an off-season calf injury.
Dempsey will undergo scans on Monday afternoon to determine the extent of the injury.
Club doctor Bruce Reid told essendonfc.com.au that Dempsey "can't take a trick" when it comes to injury.
“The physiotherapists at the VFL thought he might have strained his lower hamstring so he is having a scan this afternoon,” he said.
Dempsey's teammate Patrick Ryder, who injured his ankle during Friday night's loss to Hawthorn, has been cleared of any major damage and is a chance to face the Blues on Sunday night.
“We hope we can get him up for Sunday but at this stage it is going to be close and with a nine day break we will decide later in the week.”