Inter Milan CEO, Beppe Marotta has claimed Romelu Lukaku only joined Chelsea for money after he left the Italian club. Inter chief Marotta believe the huge increase was the reason Lukaku left the Italian champions to return to Stamford Bridge. 'Lukaku left to double his salary, in Italy these figures can't exist,' Marotta told Italian newspaper Il Corriere della Sera. While Inter cashed in on Lukaku, their financial troubles meant they could not re-invest the money in the squad. According to Marotta, they found a perfectly good replacement for the Belgian in Edin Dzeko, who joined on a free transfer from Roma. 'Lukaku was sold for €115m and we bought Dzeko for free. On the pitch, there isn't much difference,' Marotta added.