Nardin Mulahusejnović had plans to continue his career at Sepahan, an Iranian club. Zrinjski had received an offer from Sepahan that they found irresistible. The clubs had agreed on a transfer valued at 450,000 euros, and Mulahusejnović had even joined Sepahan for preparations in Turkey. However, Sepahan did not stick to the initial agreement, as they tried to negotiate a loan instead of a purchase, complicating the deal. Moreover, Sepahan failed to pay the player as initially agreed, which led to the collapse of the transfer. Mulahusejnović has since returned to Bosnia and Herzegovina, with his contract at Zrinjski remaining valid until the summer of 2026.