sentences:  Callahan defended his title again in 1927 against Spug Myers in Chicago, and on May 28, 1929, against Fred Mahan in Los Angeles.In the Andy Divodi win on March 14, 1927, NBA recognized the bout as being for the World SuperLightweight title.This was also the title recognized by the NBA in Callahan's winning ten round points decision against Spug Myers on May 31, 1927, in Wrigley Field in Chicago.