Rayo Vallecano de Madrid, S.A.D., often abbreviated to Rayo, is a Spanish professional football club based in the Villa de Vallecas district of Madrid. The club competes in La Liga, the top flight of Spanish football. From Wikipedia
Alexander Sorloth's late goal secured a 1-1 draw after Pablo Barrios' early red card left Atletico Madrid a man down for nearly the entire match.