The Hero Indian Super League (ISL) is India’s unrivaled football championship which kicked off on October 12, 2014. The inaugural winners of the league were ATK, while Chennaiyin FC were the winners of the second season. The third edition of the Hero ISL saw ATK reclaim the trophy, winning their second in three years, while the fourth season saw Chennaiyin win back the trophy again. The league is co-promoted by Reliance, Star India and supported by the All India Football Federation (AIFF). India’s leading industrialists and celebrities from sports as well as the Indian film industry have heavily invested in the league’s ten franchises based in the following cities: Chennai, Delhi, Goa, Guwahati, Kochi, Kolkata, Mumbai, Pune, Bengaluru, and Jamshedpur.