Upon Ronny Deila's arrival as the new Celtic manager in June, a number of players were allowed to leave the club as part of the Norwegian's transfer activity.
Tony Watt, Fraser Forster, Georgios Samaras, Holmbert Fridjonsson and Amido Balde were all allowed to leave, but one deal was slightly more surprising.
Despite only joining from Schalke in August 2013, Finnish international striker Teemu Pukki was allowed to head off to Brondby on loan after just over a year in Glasgow.
It's not even that Pukki was poor. The 24-year-old scored seven goals in 26 league games for Celtic, which is far from disgraceful, whilst Deila was full of praise for Pukki after scoring twice in the Champions League qualifiers.
"He needs minutes and he has scored in almost every game he has played now which is good. I've talked with him like I have talked with all the players but everything is a process," said Deila in July. "There will be good times and bad times during a season but it's the dialogue between the coach and the player which is important."
Yet just over a month after those comments, Pukki had been moved on. After the signings of John Guidetti and Stefan Scepovic, Pukki was allowed to leave on loan, heading back to Scandinavia with Brondby.
And so far, after 14 appearances in all competitions, Pukki has hit seven goals - averaging one goal every other game - as he proves his quality.
That will no doubt bring up the question over whether Pukki still has a future at Celtic. With Guidetti only on loan, and interest in his services building, Celtic could still utilise Pukki if the Swede does leave.
Deila comments about Pukki needing minutes ultimately led to his exit, with the Finn's path to the first team blocked by the likes of Guidetti, Scepovic, Anthony Stokes and Jo Inge Berget.
If he continues to score goals in Denmark, Deila will have no choice but to give Pukki another chance - and given the poor displays of Scepovic so far, Pukki could yet be an important player for the Bhoys.