Geelong coach Chris Scott will be nervous early this week, awaiting scans with two key players for the Cats going down in the 15-point defeat to West Coast on Sunday.
The Cats trailed by 32 points at half-time, before a third-quarter surge propelled the Cats to lead by five at the final break.
However, with already two down on the bench [Cam Guthrie with an ankle, and Nakia Cockatoo with a knee], Gary Ablett's injury couldn't have come at a worse time for the Cats.
Yet, early in the final quarter, while chasing a loose ball, Ablett pulled up clinching at his right hamstring and hobbling off, and not returning to the field.
"His injury through the pre-season was a two-week hamstring - it was minor. This one looked a bit significant to my inexperienced eye," Scott told reporters after the game.
"I'm looking for confirmation - I'm not sure it was the same one."
While being dominated in the first quarter losing the inside 50 count 24-10, the Cats were able to stay in the contest before their third quarter fightback.
However, with costly misses in front of goal, and just one fit man on the bench, the Eagles ran over the top, kicking six goals in the final 10 minutes of the game.
If Ablett's injury is a regular 3-4 week hamstring, he would miss a vital month of football coming up for the Cats.
They play St Kilda next week at GMHBA Stadium, before travelling to Adelaide to face the Power, then host Sydney and GWS in consecutive weeks in Geelong.