Radomlje have signed 28-year-old Croatian right-back Antonio Bosec from Vukovar during a quiet summer transfer window for the club. Bosec arrived approximately a week before the new season starts and is expected to replace Matej Mamić, who departed for Romania after his contract expired. Bosec has an estimated market value of 400,000 euros and has experience from the Croatian top division, where he made 257 appearances, scored four goals, and provided 26 assists. He has also been capped once for the Croatia U21 national team.