Kolkata: Probing the multi-crore-rupee Saradha Group scam, the CBI Thursday grilled officials of city football giants East Bengal and Mohun Bagan, mostly about the clubs’ sponsorship deals with the tainted group. Sumon Ghosh of Mohun Bagan, talking to media persons later, said senior club official and Trinamool Congress MP Srinjoy Bose played a role in clinching the deal with Saradha. Ghosh, who along with East Bengal’s Swapan Ball, was grilled for nearly four hours, said the Saradha deal concerned only the football team and not the entire club.