Oleksandr Usyk vacated his cruiserweight titles in 2019. Usyk had won all four of the major cruiserweight titles in 2018, and he was considered to be the best cruiserweight in the world. However, Usyk decided to move up to heavyweight, and he vacated his cruiserweight titles in order to do so.
Ringing in the Right Answers: Uncover the Brilliance of Oleksandr Usyk!