Martina Navratilova, one of the most successful tennis players of the modern era, has signed with sports and entertainment management agency, Octagon.
Octagon will manage the former player's 'tennis opportunities, develop her career in the entertainment and television space and handle her speaking, literary and marketing endeavours.'
A statement from Octagon said: 'Martina is unquestionably one of the most powerful figures in women's sports history. Her bold, successful, and motivational life story has shaped her to be an inspiration to all.'
Former world number one Billie Jean King described Navratilova as 'the greatest singles, double and mixed doubles player who's ever lived.'