Zugarelli began his tennis career in 1973. He was able to win a tournament in singles and doubles. From 1971 to 1979 he was in the Italian Davis Cup team for use. He played a total of 16 matches, of which he won seven. In 1976 he was one of the selection that won 4-1 against Chile in the Davis Cup . In the final he lost to Belus Prajoux 4: 6, 4: 6, 2: 6.