Signed for £540k, sold for 8 figures: Celtic struck gold on 23 y/o "Roy of the Rovers" - opinion
After impressing Ronny Deila on a week-long trial at Celtic back in January of 2016, the Norwegian manager’s decision to recommend that the Bhoys offer Kristoffer Ajer a long-term deal at Parkhead proved to be something of a masterstroke by the 46-year-old


