Ajax midfielder Nouri remains in induced coma

Nouri was treated on-field during the game in Austria – which was subsequently abandoned – before a helicopter whisked the 20-year-old was taken to hospital.

Although Nouri stabilised, Ajax confirmed on Tuesday that his heart was functioning normally, doctors were unable to examine his brain until he was brought out of an induced coma.

On Tuesday, the hospital in Innsbruck were "cautiously optimistic" after a CT scan and other neurological tests did not show any abnormalities but Ajax have confirmed the latest tragic developments.

"Ajax are deeply saddened by the news that Appie Nouri has been diagnose with serious and permanent brain damage," read a statement released via the club's Twitter account.

"Our thoughts and prayers go out to him and his loved ones at this difficult time."

Nouri made his Eredivisie breakthrough with Ajax last season, making nine appearances for the first team under Peter Bosz.

"This is the worst possible news we could get. It is devastating," said Ajax chief executive Edwin van der Sar.

"There are no words to describe what [Nouri's family] are going through. This is a huge blow for Ajax, even if we knew this scenario was a possibility.

"There were some very difficult and insecure days, with a lot of people showing their support. We really appreciate that.

"Abdelhak is such a huge talent, but we will never know how bright his star would have shone had this not happened."