Abraham Washington Attell (1883–1970) was among the cleverest, most scientific professional boxers ever to enter the ring. The native San Franciscan fought 172 times in his career—scoring 127 wins, 51 by knockout—and successfully defended his World Featherweight Champion title 18 times between 1906 and 1912, defeating challengers who included Johnny Kilbane and Battling Nelson. Attell’s success inspired his brothers Caesar and Monte to take up the sport—Abe and Monte both held simultaneous world titles for a time. This first ever biography covers Attell’s life and career. Growing up poor and Jewish in an predominantly Irish neighborhood, he faced his share of adversity and anti–Semitism in and out of the ring. He was charged for alleged involvement in the 1919 Black Sox Scandal. The charges were dropped but Attell was branded by association for the remainder of his life.