Ange Postecoglou has revealed that Aaron Mooy is "touch-and-go" to feature against Rangers.
The Celtic midfielder could play at Ibrox this weekend but the Celtic boss warned Mooy is "a bit sore" with some minor knocks.
However, Celtic have been boosted by the return of James Forrest who is back in training an in contention to face Rangers.
Alistair Johnston and Cameron Carter-Vickers remain out for Celtic with injury problems.
But Postecoglou insists there has been no "major" fitness concerns from last weekend's win over Hearts when Celtic sealed the league title.
Postecoglou - asked for an injury update - explained: "Nothing major from last week.
"James Forrest is available as he has been back training which is good.
"Aaron Mooy is a little bit touch-and-go for Saturday. He is just a bit sore with a couple of things and we will see how he is.
"Everyone else is fine and good to go."
READ MORE: Ange Postecoglou in Celtic response to Rangers guard of honour snub
On Carter-Vickers' injury, Postecoglou said after the win over Rangers at Hampden: "That's Cameron Carter-Vickers last game of the year. He's been carrying an injury for I don't know how long.
"We'll put him out to pasture for a little bit now."
And pressed on Johnston's knock against Rangers, Postecoglou said at the time: "He got a sore one for him to come off. He was waving the crutches about so he seemed alright afterwards but you know what it is like, they feel no pain at full-time.
"We will have a look at it but that is the beauty of our squad, Anthony Ralston comes in and he has not played for that long and he did a fantastic job for us. It has been a squad effort since day."
Our Celtic Digest newsletter brings exclusive content directly to you rather than solely through the website. You can already find us on YouTube, Twitter, Facebook, TikTok and Instagram but we will also send bespoke opinion pieces and special features directly to your email inbox every evening. Not only will you receive this article from Sean Martin, Tony Haggerty or Aidan Macdonald (or, sometimes, from all three) but you will also get easy access to our best content from the last 24 hours too. It’s a great way to keep up to date with what’s happening at Ange Postecoglou’s Scottish champions. To sign up, simply take five seconds to type in your email here. Simple!
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here