Former Manchester head coach Jose Mourinho has been reported to be a contender to become the next manager for the Bhoys.
The Portuguese manager has been without a club to manage following his departure from English club Manchester United in December, with links to manage several clubs in Europe continue pointing to him.
Celtic are also in the market looking for a manager following the departure of Brendan Rodgers to Leicester City.
The 56-year-old manager has been linked with move to France and Italy and according to Paddy Power bookmarkers, Scottish club Celtic has been linked as a possible destination.
With a possible signing to the Scottish club looking impossible, the odds of him joining has been slashed from 66/1 to 44/1 in the last 48 hours.
Following the departure of Rodgers to English club, Celtic appointed Neil Lennon for a short takeover which will end as the season ends.