Complex sentence: During his amateur career, Prescott fought in the 2003 Pan American Games at Santo Domingo, Dominican Republic, where he lost in the first round, (on points) to Lucas Matthyssehe later called it a fluke and said Matthysse hit like a baby rabbit.
Split into simpler sentences: During his amateur career, Prescott fought in the 2003 Pan American Games in Santo Domingo, Dominican Republic, where he lost in the first round (on points) to Lucas Matthysse. He later called it a fluke and said that Matthysse hit like a baby rabbit.