World Boxing Super Series boxing tournament attempt since the Super Six World Boxing Classic, which took place from 2009 to 2011. The first season of tournament was held from 2017 to 2018 at two weight classes: cruiserweight and super middleweight. The inaugural tournament started in September 2017 and finished with two finals in the summer of 2018. With the tournament, the cruiserweight division crowned its first undisputed champion since 2006. At a press conference in London on 9 May 2018, a second season was announced, which would take place from 2018 to 2019. Bantamweight and light welterweight was confirmed as two of the three
IWA Undisputed World Heavyweight Championship from both companies and Rodríguez's expulsion from the event. After the event's conclusion police officers were deployed and the IWA retained physical possession of the championship. Following this the belt was returned to WWC personnel following an ultimatum, which claimed that the company would take legal action if it wasn't returned within forty-eight hours. However, both the International Wrestling Association and the National Wrestling Alliance recognized the unification match, and considered Lozada the first Undisputed World Heavyweight Champion in Puerto Rico. Beginning in 2009, the IWA Undisputed World Unified Heavyweight Championship began becoming involved in several inter-promotional "champion vs. champion"