The Bhoys were wished all the best by the side they previously knocked out.
Indeed, with a gallant social-media gesture, the Icelandic side showed there are no hard feelings after the Hoops eliminated them from Europe over two legs and wished them all the best ahead of their 'Road to Milan.'
Stjarnan FC (@FCStjarnan) July 29, 2015
Celtic's social media team acknowledged the gesture, thanking Stjarnan for their sporting integrity!
This year's exchange is in stark contrast to the Hoops' qualifying rounds last campaign, when they were knocked out and then re-instated.
The Bhoys host Qarabag in the first leg of their third-round tie at Parkhead tonight and boss Ronny Deila hasn't missed the opportunity to provide a call to arms to supporters.
The Norwegian wants the Celtic crowd to be the difference against the Azerbaijani side, replicating the atmosphere they produced against Inter Milan in the Europa League last season.
Kris Commons and Gary Mackay-Steven should be fit for the Qarabag tie, although Deila has declared that Charlie Mulgrew is a doubt for the Champions League clash.