Akhmadaliev finally began to break Castillo down in the fourth, when a left uppercut to the body from the southpaw appeared to drop Castillo, but it was ruled a slip. Looking to test how much of a slip it really was, Akhmadaliev went back to the well in the fifth, and this time Castillo was doubled over on the floor for a count. Akhmadaliev continued to press the action in the sixth, and scored another knockdown on a short, sweeping left to the chin.