List of current men's boxing world champions as Tyson Fury and Oleksandr Usyk reign as heavyweight kings, while Canelo Alvarez rules the super-middleweights | talkSPORT
Boxing world champions: List of EVERY world titleholder, including Tyson Fury, Canelo Alvarez and Oleksandr Usyk | The US Sun
IBA - Legendary boxer Estelle Mossely becomes Ambassador for IBA Women's World Boxing Championships The International Boxing Association (IBA) is proud to announce that AIBA Women's World Boxing Champion 2016 Estelle Mossely
The 10 Longest-Reigning Welterweight Boxing Champions In History | HowStuffWorks