After all the talk of whether Alexander-Arnold would even make the England squad, a devastating injury may prevent him from participating in this summer's tournament.
He was forced off on Wednesday after attempting a clearance with his left-foot towards the end of the friendly clash.
Alexander-Arnold, who looked visibly distraught, hobbled off the pitch with ITV claiming he said something had "gone" to the England medical staff.
The Liverpool star is now facing a race against time to be fit for the Euros with the Three Lions kicking off their campaign versus Croatia on June 13.
Speaking after his side's 1-0 win over Austria, Gareth Southgate revealed that the doctors will assess Alexander-Arnold over the next few days.
"We're going to have a little look," he said.
"It's obviously not good to see him having to come off in the way he did, but we'll have to assess him over the next 24 hours."
He added: "I think (it's his) thigh, but the medical team are still assessing it.
"We'll just have to see, it's not a good sign to see him walk off in the way that he did, so we'll know more in the next 24 or 48 hours.
"We don't know the full extent, so the last thing you want is to see him come off in the way that he did."
Southgate also refused to answer when asked who could replace Alexander-Arnold in his 26-man squad.
England return to action on Sunday when they play Romania in their final friendly match before Euro 2020.
Featured Image Credit: ITV
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