Novak Djokovic is undefeated this year; he has won 39 matches in a row. Experts believe he will very soon advance from number two in the rankings to become the number one player in the world.
So what is the secret to his form? Many things, no doubt, but maybe this is a big factor: He no longer eats any pizza, pasta or bread.
Will a low(ish) carber soon rule the tennis world?