Robert F. Prince was an American radio and television sportscaster and commentator best known for his 28-year stint as the voice of the Pittsburgh Pirates Major League Baseball club, with whom he earned the nickname “The Gunner” and became a Pittsburgh icon. Prince was one of the most distinct, colorful and popular voices in sports broadcast history, known for his gravel voice, unabashed style and clever nicknames and phrases, which came to be known as "Gunnerisms". Wikipedia
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