Universally accepted as a true icon of the 20th century, Muhammad Ali’s phenomenal achievements spanned sport, politics and religion. One man – photographer William Klein had comprehensive access to the events that shaped Ali’s legend. In 1964, the young gregarious Cassius Clay successfully defeated the seemingly invincible Heavyweight Champion of the World Sonny Liston – the manner of Clay’s victory and his amazing persona made him an instant superstar. Through this incredible period, and Clay...