Complex sentence: His father Olaf Eller is the current coach of the Danish Under-20 national team; a former Danish international ice hockey player and former coach of several teams in the Superisligaen as well as IF Troja/Ljungby in Sweden.
Split into simpler sentences: His father Olaf is the current coach of the Danish Under-20 national team. Olaf is a former Danish international ice hockey player and former coach of several teams in the Superisligaen, as well as Troja/Ljungby in Sweden.