It is a sign that Kieran Tierney is such an important player for Celtic that he was recently released from his Scotland duties to avoid a mid-season burnout after making 22 appearances already so far during this campaign.
The 21-year-old left-back has made 19 appearances for Celtic in the league, cup and both European competitions. Celtic though have not had the best of starts to the season and currently sit in third in the Scottish Premier League after completing their famous double treble at the end of the last campaign.
Tierney though has been extremely impressive after being linked with a number of Premier League clubs in England in the summer, and should now be considered a £25m player.
He came through the youth system at Celtic and made his debut in 2015 under Ronny Deila against Dundee, but his quality and potential surely mean he will be on his way to the English top flight or elsewhere to a top European club sooner rather than later.
So, Celtic fans, how much do you think Tierney would be worth now? Have your say by voting in the poll below.