sentences:  In 1925, when ten round fights were legalized in California, Callahan ran through a number of opponents including Russel LeRoy, and Pal Moran, knocking both out in three rounds.He also fought Red Herring, and Spug Myers.He defeated Ace Hudkins in ten rounds on November 14, 1925 in their second meeting in Vernon California, despite having broken bones in both hands.