Kieran Tierney has left Scotland's Euro 2024 camp to have his injury assessed by Arsenal, ruling him out of Euro 2024.
The defender picked up a hamstring issue during his side's 1-1 draw with Switzerland on Wednesday, with the severity unknown despite the Scot being stretchered off during the game.
He went down after competing for the ball with Dan Ndoye, and the 27-year-old's tournament is tournament is almost certainly over, with his recovery period now set to be decided by his club back in the Premier League.
Scotland's medics rushed on to treat Tierney and he was taken off with the game poised at 1-1, later pictured back on his feet but covering his face with his shirt in the tunnel.
He will miss their pivotal final group game against Hungary, manager Steve Clarke has confirmed.
The Arsenal defender became the latest addition to Scotland's lengthy list of casualties, with Lewis Ferguson, Aaron Hickey, Nathan Patterson, Lyndon Dykes, Ben Doak and Jacob Brown were ruled out of Clarke's squad before the flight to Germany.
Tierney, who suffered three seperate injuries last season on loan at Real Sociedad, has seen his career blighted by a litany of setbacks.
Clarke said after his side's game: 'Yeah, [he's] definitely out. It looks pretty bad. Obviously we have to assess it but Kieran won't make the next game.
'You have to feel for Kieran. He's got himself in great shape and is a top player for us. He does ever so well.
'It's a shame, but someone else has got to step in and step up to the mark.'
David Moyes told BBC Sport: 'He's hugely key to how we play.'
'It's devastating for KT,' said Norwich midfielder Kenny McLean after the game. 'We know how big a player for us and on a night like Sunday, when hopefully we'll be a lot more front foot, that's when he'd have come alive.
'I thought he was outstanding defensively before he got the injury. Hopefully it's not too bad for him, but if it rules him out we've got the likes of Scott McKenna and Liam Cooper to come in.
'This gives us even more of a cause to do it on Sunday. Obviously, Dyksey has been in camp with us as well. They are people who have played a massive part in getting us here so they're going to be supporting the lads.'
Scotland will go into their final Group A game against Hungary on Sunday knowing a win will likely secure their qualification for the last 16.
After struggling in their opener against Germany last week, they picked up a vital point against Switzerland to keep their fate pretty much in their own hands going into the last game.
Clarke has few options to replace the defencer, with the likes of Liam Cooper and Scott McKenna vying for the spot.