Mohun Bagan Super Giant suffered a shocking defeat in their opening day match of the AFC Champions League 2, at the Vivekanada Yuba Bharati Krirangan at the hands of Turkmenistan side Ahal FK on Tuesday. Mohun Bagan Super Giant started with their traditional 4-3-3 formation, with Deepak Tangri and Apuia playing as pivots. Kiyan Nassiri got a rare chance to feature in the starting XI on the right flank.