 Alessandra Sublet was born in Lyon, the daughter of Joël Sublet, a former soccer player of the Olympique Lyonnais in the 1970s.She is the cousin of soccer player Willy Sagnol.As a child, she prepared a sport studying course in classical dance at the Alain Astié school of Lyon and attempted to join the Opéra de Paris but was rejected because of her height (1.60 m).