Complex sentence: He is the former head coach of the Canberra Raiders of the NRL and he spent his whole Australian playing career with the Raiders as well, leaving the club as the greatest point-scoring forward in NRL history before enjoying a successful career in England.
Split into simpler sentences: He is the former head coach of the Canberra Raiders of the NRL. Furner spent his whole Australian playing career with the Raiders as well and left the club as the greatest point-scoring forward in Australian rugby league history before enjoying a successful career in England.