Kolkata : Players in action during the ISL semi final match between Atletico de Kolkata and Chennaiyin FC in Kolkata on Dec 16, 2015. (Photo: Kuntal Chakrabarty/IANS) Kolkata : Players in action during the ISL semi final match between Atletico de Kolkata and Chennaiyin FC in Kolkata on Dec 16, 2015. (Photo: Kuntal Chakrabarty/IANS) Kolkata : Players in action during the ISL semi final match between Atletico de Kolkata and Chennaiyin FC in Kolkata on Dec 16, 2015. (Photo: Kuntal Chakrabarty/IANS) Kolkata : Players in action during the ISL semi final match between Atletico de Kolkata and Chennaiyin FC in Kolkata on Dec 16, 2015. (Photo: Kuntal Chakrabarty/IANS)