Complex sentence: He lost to Abe Attell in 1905 but beat Jack O'Neill to secure another shot at the title on September 9,1905, finally beating Britt by an eighteenth-round knockout.
Split into simpler sentences: He lost to Abe Attell in 1905 but then beat Jack O'Neill to secure another shot at the title. This time, on September 9,1905, he beat Britt by an eighteenth-round knockout.