McJoe Arroyo Acevedo (born December 5, 1985) is a Puerto Rican professional boxer who held the IBF junior bantamweight title from 2015 to 2016.

[1] McJoe was born along his twin brother, McWilliams, in the municipality of Ceiba in the northeast coastal region of Puerto Rico's main island.

[3] They initially took up the sport as a hobby, but after six fights they began establishing a pattern of only spending a limited amount of time inactive during a month, visiting the gymnasium at least every two weeks.

In 2007 he participated at the Amateur World Championships and lost in the semifinals to eventual Russian winner Sergey Vodopyanov 9:20, qualifying for the 2008 Olympic Games.

[7] On December 8, 2009, the Arroyo brothers issued a press release through their mother, Milagros Acevedo, informing that they were no longer interested in continuing their amateur careers.

[8] In the letter, they report differences with the criteria used to provide economical support to high-performance athletes, as well as schedule conflicts with their original plans to pursue a professional career after the 2010 Central American and Caribbean Games.

[8] These concerns were restated in a subsequent press conference, where they noted that supporting their respective families was the main reason to pursue a professional career.

[10] The fight began with Rivera moving around the ring, while Arroyo pursued him while engaging on the offensive, eventually scoring a knockdown.

However, Arroyo was forced to rest eight months between these two fights after suffering a chin fracture, making his return in the super flyweight division.

On June 14, 2014, Arroyo scored an eleventh-round technical knockout over former world champion Hernán Márquez in an International Boxing Federation title eliminator.

Ancajas scored a knockdown over Arroyo in the seventh, as he dominated throughout most of the fight en route to a unanimous decision victory.