Ken Regan, Author: Ken Regan began his career in photography by covering major sports events. In the 1970s, Regan's scope expanded to the political to include coverage of campaigns, demonstrations, the Kennedy family, and wars in Vietnam, Bosnia, and the Persian Gulf. Regan has more than two hundred magazine covers to his credit, and his work has been featured in such publications as Vanity Fair, Rolling Stone, Time, Sports Illustrated, and People magazine.

Liam Neeson, Contributor: Liam Neeson started boxing at the age of nine. In his teens, he traveled around Ireland for the sport and held the title of Youth Heavyweight Champion for three years. A lifelong fan, Neeson still works out with his punching bag weekly.

Norman Mailer, Contributor: Norman Mailer was an American filmmaker, actor, and political candidate. He wrote The Executioner’s Song and Armies of the Night, among many others, and was the recipient of two Pulitzer Prizes as well as the National Book Award.

Budd Schulberg, Contributor: Budd Schulberg was an American screenwriter, television producer, sports writer, and author of the best-selling novels What Makes Sammy Run and The Harder They Fall as well as the Academy Award–winning screenplay for On the Waterfront.

Muhammad Ali, Contributor: Muhammad Ali was an American Olympic and professional boxer and activist. He is widely regarded as one of the most significant and celebrated sports figures of the twentieth century.