Stuart Armstrong could reportedly become a free agent this summer.
The central midfielder joined English Championship outfit Sheffield Wednesday at the end of January after departing MLS side Vancouver Whitecaps.
Although his spell at Hillsborough has been somewhat ravaged by injury, Armstrong has impressed in the 11 appearances he has made for Wednesday.
Read more:
-
Watch: Ex-Celtic treble winner scores as club break record points tally
-
How recent Egyptian results could see Celtic close in on 'most successful club' title
He could depart the club this summer and become a free agent, however, with his deal reportedly only lasting until the end of the season, claims The Star.
Wednesday boss Danny Rohl opened up on Armstrong's short stint in Sheffield: "I will not go too much into details," he said [The Star].
"When he arrived he had no pre-season and it was maybe a bit difficult, but you see now how much quality he has in moments and it is maybe a shame the season is nearly over. It is a decision for both sides. Stuey took this to help the club and I knew what I could get from him when he is fully fit.
"He had ups and downs, a break, a small injury which took some rhythm. Now he is getting better and it is part now heading into the break, what to do with certain players. You can offer him something but I can also imagine Stuey will get some options from other clubs and these are the decisions we have to make as a club."
Armstrong made 144 appearances for Celtic after joining the club from Dundee United in 2015. He won an invincible treble under Brendan Rodgers before departing for Southampton in 2018.