According to Norwegian outlet TV 2, Feyenoord are one of the clubs interested in signing Sandefjord central defender Zinedin Smajlović in the upcoming summer transfer window. The report claims that Feyenoord have made contact to begin discussions about a potential transfer for the Sweden-born centre-back. It adds that the 22-year-old is under contract with the Eliteserien side until the summer of 2028 and that a fee of approximately £3m or more will be required for Sandefjord to sell him.

Feyenoord, Celtic, and Toulouse are interested in signing 22-year-old central defender Zinedin Smajlović. Smajlović is a Swedish-Bosnian youth international with 3 caps for the Sweden U21 team. He is considered one of the best defensive players in the Norwegian Eliteserien and is a key player at Sandefjord, which he joined in February 2025. Sandefjord, currently eighth in the league, anticipates significant transfer activity involving Smajlović in the upcoming transfer period. The club expects a bid in the near future and acknowledges the possibility that he could break their outgoing transfer record. Smajlović's market value is three million euros and he is under contract until December 31, 2028, according to Transfermarkt.