Billie Jean King: Women's tennis players 'are the future'

On the 50th anniversary of the Women's Tennis Association, its founder Billie Jean King speaks to Today sports presenter Karthi Gnanasegaram. The tennis champion discussed the voice of women in tennis at the time of the formation of the WTA and what the future holds for women in the sport. (Image credit: Ian MacNicol/Getty Images for LTA)