Niclas started his career at
HK Aranäs, before joining
IK Sävehof in 2004. Here he won the 2010, 2011 and 2012
Elitserien. He then represented
Aalborg Håndbold in Denmark for three years where he won the
Danish championship in 2013. After his years in Denmark, he played 2 years in Germany and for
Frisch Auf Göppingen in the
Bundesliga. In Göppingen he won the
Euro League twice. In 2017 he returned to Sweden to join
Alingsås HK. After the 2021-22 season he retired. ==National team==