Celtic striker Odsonne Edouard could be set to miss the visit of Rangers after testing positive for Covid-19.
The French Football Federation has announced Edouard tested positive for the coronavirus while on France Under-21 duty. The 22-year-old is now self-isolating.
Scottish Government rules dictate that people should self-isolate for 10 days after a positive test and Edouard will have to remain in France for that period.
Celtic host Rangers on 17 October - 11 days after the positive test.
A statement from the FFF read: "The result of his Covid-19 test carried out by UEFA this Tuesday morning, October 6 having been positive, Odsonne Edouard was sidelined from the group upon receipt of the results, at the end of training . He was then placed in isolation.
"All the other tests carried out on the entire delegation, staff members and players, were negative."