By the late 1970s, boxing had lapsed into a moribund state and interest in it was on the wane. In 1980, however, the sport was resuscitated by a riveting series of bouts involving an improbably dissimilar quartet: Sugar Ray Leonard, Marvelous Marvin Hagler, Thomas Hearns and Roberto Duran. These four boxers brought out the best in each other, producing unprecedented multimillion-dollar gates along the way. Each of the nine bouts between the four men was memorable in its own way and at least two of them — Leonard-Hearns I in 1981 and Hagler-Hearns in 1985 — are commonly included on any list of the greatest fights of all time. The controversial outcome of another — the 1987 Leonard-Hagler fight — remains the subject of heated debates amongst fans to this day. Leonard, Hagler, Hearns and Duran didn’t set out to save boxing from itself in the post-Ali era, but somehow they managed to do so. In Four Kings, award-winning journalist George Kimball documents the remarkable effect they had on the sport and argues that we will never see their likes again.