Martina Navratilova disagrees with the Ray Wood's approach to encourage his two daughters Paloma and Livinnia, respectively three and nine years old, to play tennis and have success. According to Ray as reported by BBC, both of them can become 'two of the greatest female tennis players the planet has ever seen.' 'Livi's going to go through the teenage years and has still got to be motivated to play and train,' Ray added.

'But I think if she gets over those hurdles world number one, majors. It's not easy, but the more and more research I've done, I more than believe in that.' Navratilova, the 18-time Grand Slam singles winner, disagrees with Ray: 'First off, try put a little more pressure on these kids, why don't you? And I really totally disagree with the idea that champions are made not born.

Champions are born, and then they have to have the right environment to be made. If the girls are going to be 5ft 2in - not going to happen. Until I was about 12 years old, I played on average maybe four hours a week of tennis - look where it got me.

If everything goes really well, one of them might get into the top 10 but getting to number one? You might as well buy a lottery ticket.' ALSO READ: Roger Federer: 'I want to play as long as possible'