Morten Rasmussen's agent insists the Danish striker is looking to fight for his Celtic future in pre-season.
The former Brondby man joined in January 2010, however, injury hindered his first six months at Parkhead.
The Tony Mowbray capture has since had loan spells with Mainz and AaB, but he is now back in pre-season training with Celtic.
Rasmussen still has two years left on his Bhoys deal and his agent Ivan Marko Benes says he is happy staying.
Benes is not ruling out his client leaving Celtic during the transfer window, although it will not be on reduced terms.
"It's always been Morten's wish to stay with Celtic. He will work hard and wait for his chance," he agent told bold.dk.
"If he isn't given the chance there's not much for him to do.
"They have the right not to use him, but he's got a contract with them that they need to stick to for another two years.
"Any club wanting Morten will has to take him on the terms he has with Celtic, if he is to change clubs.
"We'll keep a low profile and Morten is working really hard. It's a really long transfer window."