Jan Keizer (referee)

Johannes ("Jan") Nicolaus Ignacius Keizer (born October 6, 1940 in Volendam, Noord-Holland) is a retired Dutch referee. He is known for having refereed two matches in the 1986 FIFA World Cup in Mexico. He also refereed one match in the 1984 UEFA European Football Championship in France. Keizer led the final at the 1984 Summer Olympics

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