Nottingham Forest are facing fierce competition to land free agent Alexander Djiku.
The defender is on the lookout for a new challenge after his deal with Strasbourg expired at the end of last month. Forest are amongst several clubs interested in securing his services.
Lille and Fenerbahce are also understood to be keen on the 28-year-old, while French outlet L'Equipe claims Villarreal are the latest club to show an interest.