John Elkann underscored his role as the dominant figure of the billionaire Agnelli family, stepping in to wrest control of the Juventus Football Club SpA away from a relative. Andrea Agnelli resigned as chairman of the Turin-based club late Monday along with the rest of the board. The upheaval was the culmination of months of tensions after Italian prosecutors and regulators alleged accounting wrongdoing. The move bears Elkann’s handprint and comes just before the 46-year-old’s annual presentation to investors in the family’s listed holding company Exor NV on Wednesday. “The new Juventus board will include technical, ... (full story)