What is Klaas Justus de Vries?
{{Infobox football biography |name= Klaas de Vries |fullname = Klaas Justus de Vries |birth_date= {{birth date|1960|1|12|df=y}} |birth_place= |death_date= {{death date and age|2022|11|24|1960|1|12|df=y}} |death_place= |position= [[Forward (association football)|Forward]] |years1= -1980 |clubs1= [[FC Harlingen]] |caps1= |goals1= |years2= 1980-1983 |clubs2= [[SC Heerenveen]] |caps2= 37 |goals2= 5 |years3= from 1983 |clubs3= [[Robur Harlingen]] |caps3= |goals3= }} '''Klaas Justus de Vries''' (12 January 1960—24 November 2022) was a Dutch footballer from [[Harlingen, Netherlands|Harlingen]].<ref name=contract>{{cite web|url= https://resolver.kb.nl/resolve?urn=ddd:010621428:mpeg21:a0261 |title= Klaas Justus de Vries tekent eenjarig contract|work=[[Leeuwarder courant]]|via=[[Delpher]]|date=16 June 1980|access-date=24 November 2022|language=nl}}</ref><ref name=ref2>[https://www.transfermarkt.be/klaas-de-vries/profil/spieler/828865 Klaas de Vries], transfermarkt.be</ref> De Vries studied at the {{ill|Hogere technische school|nl}} (HTS).<ref name=hts /> He started playing with [[FC Harlingen]].<ref name=ref2 /> He became champion with the team in 1974.<ref>[https://harlingenonline.nl/2021/12/20/100-jaar-voetbal-in-harlingen-8/ 100 jaar voetbal in Harlingen], harlingenonline.nl, 20 December 2021 {{in lang|nl}}</ref> In 1980 he signed a contract with [[SC Heerenveen]].<ref name=contract /> Becoming a prosessional player he didn't play the first months as good as expected; but showed improvements.<ref name=hts>{{cite web|url= https://resolver.kb.nl/resolve?urn=ddd:010621484:mpeg21:a0350 |title=Heerenveen wil terug op weg van ‘t succes |work=[[Leeuwarder courant]]|via=[[Delpher]]|date=20 August 1980|access-date=24 November 2022|language=nl}}</ref> In 1980 he also played for young SC Heerenveen.<ref name=young>{{cite web|url= https://resolver.kb.nl/resolve?urn=ddd:011019149:mpeg21:a0381 |title=Jong Veendam 0-0 |work=[[Nieuwsblad van het Noorden]]|via=[[Delpher]]|date=27 August 1980|access-date=24 November 2022|language=nl}}<