New Delhi: Defending champions Atletico de Kolkata (ATK) will take on hosts Chennaiyin FC in the opening match of the second edition of Hero Indian Super League football tournament, which is scheduled to start on October 3.

There will be 61 matches in all on a home-and-away basis with double-legged semi-finals starting December 11 and the final on December 20. All the matches will be played at 7 pm (IST).