Kristoffer Ajer posted a message to Celtic this evening after completing his move to Brentford today. The Norwegian defender clearly retains a great affinity for the club and is leaving to develop is career by playing in the Premier League.

Celtic have done very well in their central defender dealing today, selling Ajer for an initial payment of £13.5m its add-ons taking the deal up to £18m should the metrics go in Celtic’s favour. Presumably number of appearances and Premier League survival for newbies Brentford.

“Five years ago I travelled to Glasgow not knowing what to expect,” Ajer wrote. “The stories I got told seemed incredible, but the very first time I walked out at Celtic Park I truly understood how big a club Celtic really is.

“Football without fans is nothing,” and I want to thank every supporter that has contributed to making my time at Celtic so special.

“I also want to thank the managers that have developed me as a player, back room staff that has helped me through ups and downs, and also my teammates that have become great friends that will last a lifetime.

“A special mention also to John Kennedy, the most important person for me during my time Celtic. Without him we would never win the quadruple treble.

“I wish everyone that loves Celtic a successful future, I will always support the club,” signing off as Kris.