The winger has struggled with injuries throughout his career in Glasgow.
Celtic have a decision to make this summer regarding Dutch wingman Derk Boerrigter.
Celtic paid a reported £3 million fee to sign the winger from Ajax back in 2013, according to ESPN.
It seemed a good deal considering the player's illustrious past. He had been in the Dutch national squad in 2011 and he had been a star for Ajax in 2011-12, scoring 10 goals in 23 appearances. But he did have some injury trouble and a drop off in form which made Ajax sell him to Celtic so cheap.
Since his move to Glasgow he has been nothing but a disappointment.
He has suffered injury after injury, playing just 23 times last season and just three times this. In fact, his last appearance came in the Champions League defeat against NK Maribor in August.
Since then he has been struggling with knee trouble and in October he had an operation to solve the problem.
He returned for the under-20s in February but is nowhere near first-team football. He limped out of action for the development side on Monday in a game against Saint Mirren. He won a penalty in the fixture, but the fact he again picked up an injury will have Celtic fans wondering if he will ever cut it at the club.
The 28-year-old still has a year left on his current deal but with the competition now ahead of him at the club there is surely no way he can force himself back into first-team contention.
It would surely be best for all parties if they parted ways this summer.