Aberdeen have taken former Belgium international defender Pieter Collen on trial until the end of the week, reports the Press and Journal.
Dons boss Jimmy Calderwood said: "I was aware of Pieter when I was in Holland and he joined NEC shortly after I left.
"He has a good pedigree, but he has been unlucky. He has suffered a few injuries and he has been messed about with some transfers. We are looking at him this week and he can have a look at us, but it will be the end of the season before anything is likely to happen."