Kenneth Shropshire knows sports. He is director of Wharton’s Sports Business Initiative, president of the Sports Lawyers Association, a former executive with the Los Angeles Olympic Organizing Committee, and a football player during his undergraduate days at Stanford. He has written The Business of Sports ; In Black and White: Race and Sports in America , and Basketball Jones: America Above the Rim . He is also a professor of legal studies and business ethics at Wharton. His newest book is titled, Being Sugar Ray: The Life of Sugar Ray Robinson, America’s Greatest Boxer and First Celebrity Athlete . He spoke with Knowledge at Wharton about why he wrote the book and what impact Sugar Ray Robinson has had on sports, society, race relations and business. Knowledge at Wharton : Let me start by asking you, what exactly do you mean by the term celebrity athlete?…