Aberdeen have handed a trial to former Bayern Munich youth goalkeeper Dan Twardzik.
The 21-year-old Czech - who plays in Italy with Serie C outfit Como - has been training with goalkeeping coach Jim Leighton and the rest of the squad.
Also on trial at Pittodrie is New Zealander Te Atawhai Maurice Hudson Wihongi - a friend of Dons striker Rory Fallon.
A statement on the club's website read: "With the January transfer window just around the corner, the manager is constantly reviewing ways in which to develop the current squad and will open the door to a number of trialists over the course of the next few months."
Meanwhile, Gary Naysmith should be fit for this weekend's Clydesdale Bank Premier League clash with Dundee after making his return from injury.
The defender was back in action, after seven weeks on the sidelines with a hamstring injury, as Aberdeen defeated Motherwell in the Under-20 League.