Tennis Shoes (A Puffin Book)

All the Heath children become interested in tennis and lazy Nicky turns out to be the most talented, so the family tries to get her to enter a tennis championship. The story of a doctor's family, limited in funds, but with boundless ambition. The twins are launched by their grandfather as tennis players, only to find that the trying younger sister has the makings of a champion. So the whole family sets to work to make a tennis player of her and to reduce her ego.