He also earned five caps with the United States men's national soccer team in 1977.
Mihailovich spent the 1973 and 1974 seasons with the Cleveland Stars in the American Soccer League (ASL).
Mihailovich converted the penalty, beating New York Apollo goalkeeper Gerard Joseph in the lower left-hand corner, and the Skyhawks won the game, 2–1.
In 1977, Mihailovich jumped the first division Los Angeles Aztecs of the North American Soccer League (NASL).
While Mihailovich had played as a forward with the Skyhawks, he moved between the midfield and defense in the NASL.