XtraTime VIDEO: Kolkata derby hero Kiyan Nassiri thanks ATK Mohun Bagan team mates! Arunava Chaudhuri 2 years ago XtraTime shows footage from the ATK Mohun Bagan dressing room where Kiyan Nassiri, who as debutant scored a hattrick to beat archrivals SC East Bengal on Saturday night, thanked his team mates and also received a signed match ball.