Star West Coast midfielder Elliot Yeo will undergo scans to determine whether his knee injury is anything to worry about.
Yeo's right knee got twisted in a tackle during the opening term of Sunday's 47-point AFL win over Richmond at Optus Stadium.
The 24-year-old limped to the rooms to receive treatment but was able to return to the field in the second quarter with the knee heavily strapped.
Yeo looked proppy at first, but was able to run freely once his knee warmed up, finishing the match with a team-high 29 disposals and 10 clearances.
After the match, Yeo was seen with a huge ice pack on his knee, and coach Adam Simpson confirmed his star midfielder would undergo scans to determine the extent of the damage.
"Hopefully it's not too bad," Simpson said.
"He got a knock to the knee, a bit of a jar. He played pretty well when he came back on.
"But we'll do all the right things - get the scans and we'll see how he goes."
Simpson is hopeful Luke Shuey will be fit to return for Sunday's clash with Hawthorn at Etihad Stadium.
Shuey has missed two games with a hamstring injury, but will have the chance to push his case for selection this week.
"He'll be touch and go this week," Simpson said.
"I think he'll have a full week on the track, and it's just whether he feels he's ready, and (whether) we're willing to take the plunge. But I think he's ticked it off that he might be OK."
Shuey and Yeo are West Coast's two best midfielders and loom as key figures in the club's hopes of extending their winning run to nine matches.
The Eagles sit one game clear on top of the ladder, but they haven't beaten Hawthorn in Melbourne since round 14, 2006.
