Article in WikipediaRead the source played senior hockey for Färjestad during the club’s Division 1 seasons from 1971/72 to 1974/75. He continued with the club in Elitserien from 1975/Article in WikipediaRead the source/78.
On Article in Leksands IFRead the source, Zetterström played alongside Lars Lindgren on defence in a national-team five. Lindgren also featured in Roland Eriksson’s Article in HockeysverigeRead the source: in a 2023 interview with Hockeysverige, Eriksson remembered himself, Zetterström, Thomas Gradin and Lindgren as the four Swedes there.
Zetterström was playing for Färjestad again in the Article in WikipediaRead the source season. When his teammate Thomas Steen recalled that team in a Article in HockeysverigeRead the source interview with Hockeysverige, he referred to him as Lars “Zäta” Zetterström.