Book excerpt: Theodore 'Tiger' Flowers rose above the racist bigotry of the Deep South to become the first African-American middleweight champion of the world. To do it, this Christian family man beat a boxing legend, Harry Greb, in the first of the great sporting cathedrals, Madison Square Garden. It was a victory that stunned the sporting world and made him a household name. Yet within a year he had lost his championship on a decision some said was influenced by Al Capone - and within another year was dead, following a seemingly innocuous operation, in the clinic of a controversial surgeon, to remove lumps and scars above his eyes. Was his death, at the age of 34, an accident, a result of negligence, or something more sinister? And what was behind his white manager's attempt to throw Tiger's widow into an asylum and their daughter into an orphanage? Flowers' inspiring, harrowing story, set against an horrific backdrop of lynchings and routine prejudice, is largely forgotten now but he paved the way for black sporting heroes like Joe Louis, Jesse Owens and Jackie Robinson.