Novak Djokovic’s Miami Open defeat unlocks a new truth about future of men’s tennis
His loss to 19-year-old Czech talent Jakub Mensik underlines the changing face of men’s tennis - and puts a 100th ATP title further out of reach

His loss to 19-year-old Czech talent Jakub Mensik underlines the changing face of men’s tennis - and puts a 100th ATP title further out of reach