Ville Koski, a 24-year-old Finnish defender, will play on loan at Deportivo Alavés until the end of the season. Koski joined Istra 1961 from Finnish club Honka in January 2024 and his current deal with Istra runs until the summer of 2027. Istra's sporting director, Saša Bjelanović, told Indeks that there were serious offers for Koski last summer.