1) Oleksandr Usyk
2) Josh Warrington
3) Saul Alvarez
4) Amir Khan
Explanation:
Britain’s Amir Khan, Olympic silver medallist, won the World Boxing Council (WBC) International Welterweight Title defeating Australian Billy Dib in the fourth round of his bout at the inaugural Super Boxing League 2019 held at King Abdullah Sports City, Jeddah, Saudi Arabia.