Kieran Tierney says "it's touch and go" whether he will be fit for Scotland's Euro 2020 match with England on Friday.
On Tuesday, Scotland coach Steve Clarke said Tierney had "a chance" of making the Wembley fixture.
Tierney told reporters on Wednesday: "It's touch and go. A decision will probably be made tomorrow afternoon or even on Friday before the game."
In Tierney's absence, Scotland began their first major men's finals in 23 years with a 2-0 loss at Hampden.
However, Clarke insisted his players were not downbeat as they prepare for a trip to Wembley to take on the group favourites.