Complex sentence: His nemesis Hermann Maier was then involved in a motorcycle accident in the summer of 2001, and Eberharter went on to take the overall World Cup title (and downhill and Super-G) in 2002 and 2003.
Split into simpler sentences: His nemesis Hermann Maier was then involved in a motorcycle accident in the summer of 2001. In Maier's absence, Eberharter went on to take the overall World Cup title (and downhill and Super-G) in 2002 and 2003.