Complex sentence: He debuted when he was 17 years old in 1987 with the Pumas teams Atlético Madrid, and Real Sociedad of Spain's Liga de Fútbol Profesional.
Split into simpler sentences: He debuted when he was 17 years old in 1987 with the Pumas team. He also played with Atlético Madrid, and Real Sociedad of Spain's Liga de Fútbol Profesional.