DEFENDER Ben Stratton is highly unlikely to play in Hawthorn's cut-throat semi-final next week after he suffered a right hamstring injury against Richmond on Thursday night at the MCG.

The backman came off late in the third quarter of the first qualifying final and spent the rest of the game on the interchange bench with ice applied to the back of his right leg.

Hawks coach Alastair Clarkson was unsure of the extent of Stratton's injury after the match, with scans set to determine what part, if any, the defender plays in the rest of the club's finals campaign.

"I don't know whether it's tightness, a strain, a tear or whatever it is, but he'll get assessed," Clarkson said.

"I think he came off in the third quarter, couldn't come back on the ground, so that's never a good sign for the next week.

"But we'll get that scanned and looked at during the week and see where it goes from there."

Clarkson was hopeful, however, that Ryan Schoenmakers would be available for the second week of the finals after the key forward was a late withdrawal on Thursday night with Achilles soreness.

"He's had a grumbly Achilles for the best part of 18 months. It's just a management thing and sometimes it's good as gold. We thought with the week off he would be no drama and he trained throughout the course of the week," Clarkson said.

"But he just didn't think he could get through a full game, so hopefully he'll be right for next week but we'll just have to wait and see how he responds.

"Tendon injuries can sometimes be very, very grumbly and he's had trouble with that on and off for the past two years."

Clarkson was unsure about the extent of a hip complaint suffered by Blake Hardwick in the third term.

The defender was assessed in the rooms but came back on to the ground soon after and finished the match.