Kieran Tierney admits it's “touch and go” whether he will be fit to face England at Wembley – as he tried to avoid a lengthy lay off for Arsenal next season.

The Arsenal star has revealed the heartache of having to watch Scotland's opening Euro 2020 game in his hotel room as his team mates played the Tartan Army's first tournament game for 23 years.

Tierney says he has a calf injury that is “getting better” but he has to prove his fitness to Steve Clarke on Thursday.

Asked how he was, Tierney said: “50-50? It probably is, aye. It’s just so unlucky because I worked so hard to get back from my knee injury. I came back quickly, played a few games. I don’t know if those few games caught up with me and I just got a wee niggle.

“That’s all it is, just a niggle. It’s touch and go.

“The pain itself probably wouldn’t stop you playing. It’s if you played on it, it could get a lot, lot worse and you could get out for a lengthy time. You can’t risk it, not with calfs.”

Kieran Tierney was Arsenal's best player last season but missed Scotland's opener against Czech Republic

Tierney has even been “wearing tights” to improve his recovery chances, and doesn't want the misery of missing out again.

He explained: “I was gutted. I was so down. I stayed back (in Teesside) and did rehab work. I was just so flat that day. It was the longest day. It was a horrible day.

“Watching the anthem was amazing but what I was feeling inside was terrible. I wanted to be there so much.

“You get ups and downs. This was a down. I need to count myself lucky, there is a lot worse things going on and a lot worse things that can happen. I’m just doing my best to be fit for Friday night.”

Scotland boss Steve Clarke has a tough decision to make over Tierney's fitness

Tierney says Scotland can bounce back from their Group D defeat to the Czech Republic.

He added: “Everyone in that changing room has had a bad result before. You can’t get too down. We had chances, as well. It’s just tournament football. We never got the result but we have two games left and you never know what can happen.

“There wasn’t much in it between the teams, I would say. We wanted to do better, we wanted a better result, we wanted a good start to the tournament.

“Unfortunately we didn’t but looking at the two teams, you need to fancy our chances. We are here for a reason. We need to believe in ourselves more, I think, as well.”

“England's a big game. No doubt about it, there is no hiding it. They are a world class team as well. We are going down there and we are going to do our very, very best. Hopefully we can pull together a good performance.

“I don’t think there is one person in the dressing room that needs motivation to be honest. I wouldn’t worry what other people are saying.”