This is a list of all roster changes that occurred prior to the 2017–18 Indian Super League season. Retained players Due to the league expanding with two new teams, each Indian Super League club is allowed to retain a maximum of two Indian players over the age of twenty-one (21). Atlético de Kolkata Bengaluru FC Chennaiyin FC Delhi Dynamos On 7 July 2017, the Delhi Dynamos stated that they would not retain any of their domestic players from the previous season. FC Goa Kerala Blasters FC Mumbai City FC Northeast United FC Pune City ISL Players Draft Player movement and other transactions References 2017–18 Indian Super League season Lists of Indian Super League transfers 2017–18 in Indian football India