Geelong AFL coach Chris Scott admits he's concerned with the uncertainty surrounding luckless forward Dan Menzel's recovery from a groin injury.
The 26-year-old Menzel made a flying start to the 2018 season, booting 15 goals before suffering groin soreness in the round-five win over Port Adelaide.
He then had a bad reaction to a standard injection and was yet to resume training.
"When there's a clear injury and a historical precedent, you get some certainty," Scott told reporters on Thursday.
"Even if the outcome is several weeks, at least you are confident that he will be back.
"This is a bizarre situation where it's hard to get clarity.
"The prevailing view is that he'll come good and it's not something that will plague him long term.
"But from my perspective, I just wonder how we have that clarity, given we don't really know what the problem was and is."
The gifted Menzel, after making his AFL debut in 2010, has been restricted to just 65 senior games after four knee reconstructions.
Menzel has also had to manage the ongoing groin problem which had forced him out of the 2017 preliminary final and had flared up again this year.
"He had an injection, which is standard procedure for players in that predicament, and had some sort of reaction to the injection and was very, very sore," said Scott.
"He's a lot better than he was in the first week or two, but still not good enough to train.
"That doesn't lead me to believe that he'll be available in the short term."
In better news, Lincoln McCarthy - another clever Cats' forward who has spent far more than his fair share of time on the injury list - will play a second-straight match this weekend in the VFL.
"Last week wasn't about performance for him, but he got through the match really well, so he ticked the box in terms of his physical participation - he just happened to play pretty well as well," said Scott.