Complex sentence: El Mundo Deportivo, 4 February 2009 due to his reflexes, he played most of his professional career at Atlético Madrid; for roughly one year (early-late 2009), he also coached the club, helping it qualify once for the Champions League.
Split into simpler sentences: El Mundo Deportivo, 4 February 2009 due to his reflexes, he played most of his professional career at Atlético Madrid. For roughly one year (early-late 2009) he also coached the club, helping it qualify once for the Champions League.