The youngest fighter ever to sign with Top Rank Inc defeated a game opponent Jorge Rojas Zacazontetl by way of a four-round decision in their undercard bout at the MGM Grand Garden Arena on the undercard of Terence Crawford vs. Jeff Horn.

In the first round, Flores Jr. showed off fast hand speed and accurate punching as he landed at will against a game opponent. The fight was controlled by Flores Jr.’s great jab which was too fast for his opponent to have an answer for.

The scores were 40-36 across the board.