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In 1971, Wieczorkowski joined FC St. Pauli in the second division Regionalliga Nord. In 1974, he moved to Rot-Weiss Essen which played at the time in the Bundesliga. In 1979, Wieczorkowski moved to the United States and signed with the San Diego Sockers of the North American Soccer League. Over the next six years, Wieczorkowski played five summer outdoor seasons, three NASL indoor seasons and three seasons in the Major Indoor Soccer League with the Sockers. He won four championships, all indoors, with the Sockers. Wieczorkowski also played for UNAM Pumas in Mexico in 1979–1980.