Roger Leonard's brother competed between what years?
Roger Leonard:  He is the older brother of boxing legend Sugar Ray Leonard, who he introduced to boxing. Sugar Ray Leonard:  Often regarded as one of the greatest boxers of all time, he competed from 1977 to 1997, winning world titles in five weight divisions; the lineal championship in three weight divisions; as well as the undisputed welterweight title.
1977 to 1997