The former Celtic defender has been forced to quarantine after leaving his Scotland intentional duty early after he took part in a gaming session with team-mate Stuart Armstrong who then tested postive.
Although Tierney has repeatedly tested negative, he has been made to fulfil 14 days of isolation despite the pleas of the Gunners to allow him to return to London and resume training.
The Mail have reported that Arsenal are running out of time in their pursuit to free Tierney after he was adjudged to have been in close contact with Southampton’s Armstrong despite his defence.
Arsenal are said to have been lobbying the Scottish Government in a bid to release their player, but have made little progress over the last week as Scotland took part in three internationals.
They are believed to have proof that Tierney was sat almost three meters from his colleague before the postive test, but it was the Lothian health board who were called in to help in the decision making.
Arsenal said of their player: “Our medical team have confirmed that Kieran was socially distant at all times from the player who tested positive and has broken no rules regarding Covid-19 protocols.
“We are currently seeking further advice and clarification of the details.”
With Tierney adding: “I’m so disappointed and frustrated. I have adhered to all regulations and made sure I was socially distancing from team-mates in the hotel. I’ve also tested negative.”
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Celtic’s Ryan Christie has also been in the position of Tierney, angering his parent club Celtic.
He said: Christie said: “I am so disappointed by the events of today and the potential effects on my country and club.
“As I’ve operated within these protocols for such a long time, I’m well aware of all the rules.
"Social-distancing from team-mates has become the norm and something I’ve observed.”