Mumbai, Oct. 12 -- Former champions Mumbai City FC were stunned in their opening Indian Super League (ISL) fixture this season, going down to ISL debutants Churchill Brothers SC 2-1 at the Fatorda Stadium on Sunday. Gaurav Bora headed in the club's first ISL goal in the 57th minute and Sebastian Gutierrez added a second in the 86th. Sergio Llamas pulled one back from the penalty spot in the third minute of stoppage time, but it was not enough for the Islanders. Mumbai City took the early initiative, controlling possession and building from the back. the visitors won a free kick in the 17th minute after a foul on Wilmar Jordan. Brandon delivered it, and the deflected ball was collected by Akash Mishra. The half ended 0-0. The second half began with intensity from both sides, with Churchill probing for openings and Mumbai City looking to hit on the break. Trijoy Dias came on for captain Kingslee Fernandes in the 55th minute. Churchill took the lead two minutes later. Anil Gaonkar swung in a cross after a short corner, and Bora headed into the net. It was Churchill's first goal in ISL history. Churchill sealed the win in the 86th minute. Stendley Fernandes, introduced a minute earlier for Trijoy Dias, set up Sebastian Gutierrez, who finished from inside the box to make it 2-0. Mumbai City were awarded a penalty deep into added time after Angu fouled Akash Mishra in the box. Llamas converted from the spot to make it 2-1, but the late consolation could not stop Churchill from claiming a historic win in their first home game of the ISL....