A perfect record does not mean that someone is the greatest. Rocky Marciano never lost a fight, but ... - Steve Sabol Quotes from quotely.org
A perfect record does not mean that someone is the greatest. Rocky Marciano never lost a fight, but I never hear anyone say he's the greatest heavyweight champion of all time. by Steve Sabol

A perfect record does not mean that someone is the greatest. Rocky Marciano never lost a fight, but I never hear anyone say he's the greatest heavyweight champion of all time.

Steve Sabol