Date of Birth: 
Place of Birth: Gelsenkirchen, North Rhine-Westphalia, Germany
About Willi Koslowski
- Willi Koslowski (born 17 February 1937) is a former German football player. Striker Koslowski scored his only goal in his games for West Germany on the day of his debut, the third one of the West Germans in a 3–0 win over Uruguay in April 1962.
- He added two further appearances, one at the 1962 FIFA World Cup against Switzerland (2–1) at Estadio Nacional de Chile on 3 June, the same year.
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