Complex sentence: After the win of the German Championship with Kaiserslautern in 1998, Brehme ended his career as a football player after 301 Bundesliga matches and went on to become a coach.
Split into simpler sentences: After the winning the German Championship with the club in 1998, Brehme ended his playing career as a footballer after having played 301 Bundesliga matches. After retiring from football, Brehme went on to become a coach.