McWilliams Arroyo

McWilliams was born along his twin brother, McJoe, in the municipality of Ceiba in the northeast coastal region of Puerto Rico's main island. Their parents are Milagros Acevedo Hernández and José A. Arroyo Gelabert. Arroyo and his twin, were introduced to boxing in their childhood. At the age of 12, they entered Gimnasio Fito Ramos, a gymnasium located in the municipality of Fajardo, Puerto Rico. In this locale they met Anthony Otero, a retired amateur boxer, who became their trainer during this stage of their careers. 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. Since the early stages of their careers, the brothers decided to fight in different divisions, in order to avoid fighting against each other. However, they participated in sparring sessions, performing as they would do against other sparring partners. ==Amateur career==

Arroyo began competing in the 70 pounds division, while his brother did so in the 75 pounds. Arroyo also represented Puerto Rico in the Copa La Romana, organized in La Romana Province, Dominican Republic, earning the event's silver medal. He won the gold medal, defeating Steven Ortíz by points (25:16) in the finals. After advancing to the finals, he earned the tournament's gold medal, winning his contest against Odilion Zaleta of Mexico by points (14:8). He won his semifinals against Alex Ferramosca of Italy (26:6). In the finals, Arroyo defeated Juan Vega of Ecuador by points, 30:14. He won his bracket's quarterfinal against William Urina of Colombia, 16:7. In the semifinals, Arroyo defeated Yoandri Salinas by RSCH in the second round. He won his second preliminary contest against Vitali Volkov of Ukraine (23:14). On July 8, 2008, Puerto Rico's Sports and Recreation Department offered up to $48,000 to the five boxers classified to the Olympics, if the boxers choose to continue with the team for a second Olympic cycle. In respect, Arroyo expressed that he would make his decision after comparing the offers provided by the government and professional promoters. The twins, José Pedraza and Jonathan González began their preparations in a massive sports complex located in Salinas, Puerto Rico, named Albergue Olímpico. During the training, Arroyo suffered an injury in one of his legs. Consequently, his right foot underwent surgery and two screws were fasted to his bone, interrupting his training regime. Arroyo joined them and officially received the flag of Puerto Rico that was going to be used in the Olympic games on July 9, 2008. After training and participating in a series of exhibition matches, the team traveled from South Korea to Beijing. Despite the surgery, Arroyo decided to compete in the Summer Olympics along his brother. He received a bye in the first round of the preliminaries. Arroyo debuted in the final stage of the preliminaries, defeating Norbert Kalucza of Hungary, 14:6. In the quarterfinals, he lost to Andry Laffita (11:2). This pattern continued in the next stanza, where he was able to score six more points, including three in only eighteen seconds, before his opponent scored his first point. After advancing to the finals, he was matched against González, who won the second bracket. On this fight, Arroyo was able to win by points, gathering rounds of 6:3, 12:6 and 17:9. The fight was described as "frenetic" and saw a change in strategy by González, who attempted to pressure the offensive. Immediately afterwards, both pugilists competed in a third contest as part of the first Juan Evangelista Venegas Olympic Cup. This event was organized by the Olympic Committee of Puerto Rico (COPUR), serving as the final qualifier to determine who would enter Puerto Rico’s national team in preparation for the 2009 World Amateur Boxing Championships. The first two rounds concluded with a close score of 5:4, which favored Arroyo. Both of the brothers participated in this international event. Arroyo debuted in the tournament's third date, defeating Yoon Kyoung Min of Korea by RSCH in the second round. To close the preliminaries, he won his contest against Norbert Kalucza of Hungary by RSC in the third round. In the quarterfinals, Arroyo defeated Yampier Hernández by points, 6:2. ==Professional career==

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. 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. Arroyo's debut was scheduled for February 27, 2010, taking part of a card titled "Haciendo Historia", where Wilfredo Vázquez, Jr. fought Marvin Sonsona for the super bantamweight world championship. His opponent, Eliecer Sánchez, also debuted as a professional in this card. The fight concluded after 1:46 of the first round had passed, when Arroyo connected a single punch that left Sánchez unconscious for several minutes, requiring paramedical help and an oxygen mask, this result earned him a victory by knockout. In his second fight, he was matched against the latest Dominican Republic Minimumweight Champion, Francisco Rosario. Arroyo won by technical knockout in the third round, when Rosario surrendered following an exchange of solid combinations. His next opponent was Samuel Gutiérrez, who was forced on the defensive from the opening round, receiving several combinations and suffering a broken nose. In the second, Arroyo continued on the offensive, scoring a knockdown which prompted the referee to stop the fight. In his next fight, he suffered an upset loss to Takashi Okada (1-0-1) who knocked Arroyo down in the second round en route to a unanimous decision victory. Arroyo recovered with a six round unanimous decision win over Jiovany Fuentes. To open 2011, he scored a first round knockout over César Grajeda. Arroyo followed this with five round win over Erickson Martell. He closed the year with seven and two round technical knockouts against Rigoberto Casillas and Lorenzo Trejo. Arroyo won his next contest against Gilberto Mendoza, when the latter retired after suffering a shoulder injury. On March 10, 2012, he defeated Luis Maldonado to win the World Boxing Organization's Latino title. After repeating his previous performance in a rematch with Casillas, Arroyo defended the championship by knocking Ronald Ramos out in five rounds. On February 2, 2013, he won the World Boxing Council's Latino title with a four round win over Miguel Tamayo. However, Arroyo suffered an injury in his right hand and afterwards entered a prolonged inactivity. His return took place in an International Boxing Federation title eliminator on June 19, 2014, where he defeated Froilan Saludar by knockout in two rounds. Arroyo vs. Cuadras On February 24, 2018, Arroyo faced Carlos Cuadras. Cuadras was ranked #2 by the WBC and #6 by the WBO at super flyweight. Arroyo outpointed Cuadras on two of the scorecards, 98-92 and 97-93, while the third judge scored the fight a draw, 95-95, therefore awarding Arroyo with the majority decision victory. Arroyo vs. Ioka In his next fight, Arroyo fought former world champion Kazuto Ioka, who was ranked #2 by the WBA at super flyweight. Ioka boxed very well as his game plan seemed to work perfectly against Arroyo. Arroyo made it tough for Ioka at times, but Ioka was the clear winner of the fight, as all three judges scored the fight widely in his favor, 99-90 and 97-92 twice. Arroyo vs. Rodriguez On February 27, 2021, Arroyo fought Abraham Rodriguez for the vacant WBC interim flyweight title. Initially Arroyo was supposed to face Julio Cesar Martinez, who pulled out of the fight just days before because of hand injuries. Arroyo dominated his new opponent en route to a fifth round TKO win. ==Professional boxing record==