Geelong are determined to take no risks with in-form forward Dan Menzel, who will miss Saturday's big AFL match against Sydney with groin soreness.
Menzel has kicked a team-high 15 goals this year in five matches, just four behind Coleman Medal pacesetter Ben Brown.
But given his long history of injuries, including four knee reconstructions and groin problems, the call was made to rest Menzel against the Swans after he reported soreness.
"We need to give a certain level of clarity around his management, which is that he's a heavily managed player and he's had ongoing issues not just with his knees but his groin as well," coach Chris Scott told reporters on Thursday.
"He was going really well this time last year and the reflection from Dan in particular, as well as our people, is that we waited a little too long before we intervened.
"We've all been on high alert as to his status and, if he showed any symptoms, we were determined - irrespective of the opposition - that we were going to intervene.
"Hopefully, that means that the seriousness has been mitigated."
The Cats might have Menzel back for the round-seven clash with GWS.
"We're going to prioritise trying to get maximum performance out of Dan throughout the year, and especially towards the end of the year, as opposed to having him hobbling, which was the case at the end of last year," Scott said.
"He's playing really well and that adds to our determination to manage him to the point where he can play well every time he goes out there."
Menzel's absence this week means both clubs will be without their season's leading goalscorer, as Swans spearhead Lance Franklin is out with a bruised heel.
Cats superstar Gary Ablett will sit out at least one more week after straining a hamstring in round three.
"We always said we were going to wait until we thought he was right and then wait a bit longer and I think that's still the case," Scott said.
"It wasn't a serious injury.
"But he's an important older player for us who's going to be more important as the year goes on, as opposed to right now, even though we are playing some pretty good opposition."
After being a late withdrawal last weekend against Port Adelaide, having suffered back spasms in the warm-up, spearhead Tom Hawkins returns along with Cory Gregson.
The sixth-placed Cats and 10th-ranked Swans are among nine teams boasting 3-2 win-loss records.