Defender Kristoffer Ajer has agreed to pen a new four-year contract with Celtic.
In July 2016, Celtic paid £500,000 to sign the youngster from IK Start and the Norwegian has already established himself in Brendan Rodgers's first-team squad.
Ajer still had two years remaining on his existing deal, but Celtic have moved to offer the 20-year-old a two-year extension to his previous terms.
During the current campaign, Ajer has featured on 31 occasions, with 23 starts and one substitute outing coming in the Scottish Premiership.
Ajer's form has also been recognised by his country, with his international debut being made earlier this year.