Obstacles to overcome ahead of Kristoffer Ajer’s Celtic return

Fresh on from conformation that Kieran Tierney has officially rejoined Celtic there’s been rumours of a return for another former Celtic favourite in Kristoffer Ajer The big Norwegian signed as a 17 year old by Ronny Delia became a regular fixture in the side under Brendan Rodgers and Neil Lennon before moving to Brentford in...