What is Jan Koster?
{{Infobox volleyball biography | name = Jan Koster | image = | image_size = | caption = | full_name = | nickname = Jan met de gouden handjes<ref name=death /> | nationality = {{flagicon|NED}} Dutch | birth_date = {{birth date|1943|6|29|df=y}}<ref name=V&N>{{cite web|url= https://www.delpher.nl/nl/kranten/view?query=Jan+Koster+volleybal&page=1&coll=ddd&identifier=ddd:011019666:mpeg21:a0301&resultsidentifier=ddd:011019666:mpeg21:a0301&rowid=10 |via=[[Delpher]]|title=Vroeger & Nu Jan Koster |work=[[Nieuwsblad van het Noorden]]|date=18 June 1991|access-date=16 June 2022|language=nl}}</ref> | birth_place = [[Assen]], Netherlands | death_date = {{death date and given age|2013|4|3|69|df=y}} | death_place = | hometown = | height = | weight = | spike = | block = | college = | position = [[libero]] | years = 1969-1970<br>1970-1973<br>1973-1978<br>1978- <br> | teams = {{flagicon|NED}} SUES<br>{{flagicon|NED}} SFC, [[Assen]]<br>{{flagicon|NED}} Oranje Nassau, [[Groningen]] <br>{{flagicon|NED}} RAAK/SFC, [[Assen]]<br>{{flagicon|NED}} Oranje Nassau, [[Groningen]] <ref name=V&N /> | nationalyears = | nationalteam = | medaltemplates = }} '''Jan Koster''' (29 June 1943 — 3 April 2013) was a Dutch footballer, professional [[volleyball]] player, volleyball coach and pub owner. During his playing career he played as a libero for 16 years in the [[Dutch Volleyball League]], being a key person for the teams he played with. Koster didn’t accept the offer to play for the national team.<ref name=V&N /> Although not playing for the national team, Koster was named as one of the best volleyball players of [[Drenthe]] in the 1970s<ref>{{cite web|url= https://www.geheugenvandrenthe.nl/volleybal |title=Volleybal (begrip)|work=Encyclopedie van Drenthe|date=28 July 2012|access-date=12 June 2022|language=nl}}</ref><ref>{{cite web|url=https://www.puurvoetbalonline.nl/columns/4626-de-