XtraTime VIDEO: ATK Mohun Bagan sign Serbian defender Slavko Damjanovic! Arunava Chaudhuri 1 year ago Kolkata giants ATK Mohun Bagan have announced the signing of Serbian-Montenegro Slavko Damjanovic for the remainder of the 2022/23 season. Slavko Damjanovic will join the ATK Mohun Bagan on or after January 1 once the winter transfer window opens.