Rayo Vallecano de Madrid, S.A.D. ( Spanish pronunciation: [ˈraʝo βaʎeˈkano ðe maˈðɾið] ), [ a ] often abbreviated to Rayo (Spanish for "thunderbolt"), is a Spanish professional football club based in the Puente de Vallecas district of Madrid . The club competes in La Liga , the top flight of Spanish football .
