On the final day of the transfer window, Jakub Kałuziński is making a switch from Antalyaspor to İstanbul Başakşehir, as reported by Salim Manav of Ajansspor. The clubs have finalized a complete deal for a two-million-euro fee, and the player is in Istanbul to complete his medical checks. The midfielder had been the subject of transfer speculation for at least a year, with recent months seeing reported interest from teams like Lazio and Celta Vigo. The move is viewed as a career advancement, as he departs the team that finished 15th in the previous Süper Lig campaign for the club that secured fifth place.