Scotland’s star Billy Gilmour has no symptoms and will be isolated for ten days.
boss says that he is upset because they will be without
in their important Euro 2020 clash against Croatia after testing positive for Covid-19.
"He's upset, as you would expect. He has no symptoms, hopefully his health will hold up. Hopefully he'll get back to playing as quickly as possible.
"Obviously a blow for us but a chance for someone else.
"Billy would have started the game and now he won't, so it's a chance for someone else to come into the team and make themselves a national hero."
The good news for Scotland supporters is that the Scotland FA has confirmed that no other players will go into self-isolation and that all the team’s players have tested negative for Covid-19.
Clarke admits that the situation has affected the team’s preparation for their next game that they have to win if they want to be among the teams entering the next stage of the tournament.
"Obviously, training was a little bit disrupted but the bulk of the work has been done over the pre-camp and the training days earlier in the tournament.
"You saw for yourself [in previous games], the team know exactly what they are doing when they get on the pitch. The team has been organized, they know what they have to do, and that will stand us in good stead."