Roger Federer, Rafael Nadal and Novak Djokovic fear raised by French Open director

The director of one of tennis’ major tournaments has raised concerns about what will happen to the profile of the sport when the ‘big three’ decide to call time on their careers. Roger FedererRafael Nadal and Novak Djokovic have dominated tennis for years, but while the latter appears to be still going strong, the first two are struggling with injuries and in the final stages of their professional careers.