Kieran Tierney to Celtic transfer clue left hiding in plain sight by Mikel Arteta as Arsenal exit door thrown wide open
He is free to speak to clubs from today - and Arsenal boss Mikel Arteta appears to have hinted that Kieran Tierney could be on the fast track to Celtic this month. Tierney has been told by the Premier League giants that they won’t be taking up the additional option in his contract - which means he will become a free agent at the end of the season and is now free to speak to potential suitors.