Eddie Einhorn, who created a sports network that propelled national interest in college basketball, laying a foundation for the immense popularity of the annual tournament known as March Madness, died on Wednesday in Norwood, N.J. He was 80.
The cause was complications following a stroke, said his wife, Ann. He lived in Alpine, N.J.
In recent decades, Mr. Einhorn was known as a baseball executive. In 1981 he and his law school classmate Jerry Reinsdorf led a group of limited partners in buying the Chicago White Sox. He was the team president until 1990.
Mr.