[3] Shortly after his immediate transfer, Brown trained full-time with Jamaican national coach Fabio Takahashi, and gave his new team a historic silver medal in taekwondo at the 2014 Central American and Caribbean Games in Veracruz, Mexico.

From an early age, Brown adored watching his heroes Bruce Lee and Muhammad Ali on television that inspired him and piqued his interest to with their martial arts discipline.

[6][7] With a lack of international experience, Brown fought more cautiously in his opening-round match against Australian fighter and 2000 Olympic silver medalist Daniel Trenton, resulting in an adverse 6–12 defeat.

[8][9][10] In 2005, Brown improved from his ill-fated Olympic feat to claim the bronze medal in the men's 78-kg division at the European Championships in Riga, Latvia, and then repeated the same result in Bonn, Germany, by the following year.

[3] At the 2014 Central American and Caribbean Games in Veracruz, Mexico, Brown picked up the silver medal for his Jamaican squad in the men's 87-kg category, losing the final to Cuba's Rafael Alba by a wide 2–18 margin.