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
Undisputed champion about WBA's alleged lack of desire to support professional boxing outside of the USA. In April 1983, members of United States Boxing Association along with Robert W. Lee (a former WBA vice-president) voted to expand the organisation and form the USBA-International. The organization later changed the name to International Boxing Federation. The inaugural IBF Heavyweight Champion was Larry Holmes, who relinquished the WBC title to accept IBF's recognition, thus helping the newly formed organization to establish its legitimacy. The fragmentation of titles was thus increased. After some negotiations, the heavyweight title was unified in the heavyweight unification series, a series