Hawthorn are sweating on the results of defender James Sicily's scans after the star Hawk injured his knee in Sunday night's clash against West Coast, per SEN.
Sicily was assisted off the ground late into the fourth quarter of Hawthorn's 32-point loss to the Eagles, with coach Alastair Clarkson fearing the worst.
"We're uncertain at this stage. He's got an unstable knee, so that's not a good sign," Clarkson said.
"We'll get that scanned in Adelaide on Tuesday and see where it goes, but the mechanism didn't look great and the fact he has instability there – it can't be confirmed until the scan, but it's looking uncomfortable for us and for (Sicily).
"It's always disappointing … He's a pretty resilient lad and these things happen in footy. You've just got to deal with that and get yourself back when you can.
"It's either a medial or an ACL, so cross our fingers and hope for the best and see what the outcome is – but he'll miss a period of time, no matter what."
Hawthorn will play ladder leaders Port Adelaide in South Australia next Saturday.