Mum Amy Smit, 27, was left open-mouthed after giving birth, with tot Zagry weighing almost twice that of the average baby, and his parents now hope he will grow up to be a rugby playerMum Amy Smit, 27, was left open-mouthed after giving birth, with tot Zagry weighing almost twice that of the average baby, and his parents now hope he will grow up to be a rugby player