Complex sentence: Carpentier defended his title twice again in 1919 before dropping down a weight to challenge Battling Levinsky for the Light Heavyweight Championship of the World, they fought on October 12,1920 in Jersey City and Levinsky was KO'd in the fourth.
Split into simpler sentences: Carpentier defended his title twice again in 1919 before dropping down a weight to challenge Battling Levinsky for the Light Heavyweight Championship of the World. The fight took place on October 12,1920 in Jersey City and Levinsky was KO'd in the fourth.