Complex sentence: Sosa, better know as "D18S", which stands for God and references his favorite number, began his playing career in 2005 with Independiente, he made his league debut on 20 March 2005 in a 2--1 away defeat to Boca Juniors.
Split into simpler sentences: Sosa, better known as "D18S", which stands for God and references his favorite number, began his playing career in 2005 with Independiente. He made his league debut on 20 March 2005 in a 2--1 away defeat to Boca Juniors.