For example: Terence Crawford

Oleksandr Usyk

Ukraine

Heavyweight (Unlimited)

Bermane Stiverne

USA

Heavyweight (Unlimited)

Oleksandr Zakhozhyi

Ukraine

Heavyweight (Unlimited)

Oleksandr Gvozdyk

Ukraine

Light Heavyweight (175 lbs)

Zachary Ochoa

Puerto Rico

Vergil Ortiz Jr

USA

Super Lightweight (140 lbs)

Andrei Mikhailovich

New Zealand

Middleweight (160 lbs)

Ryan Garcia

USA

Lightweight (135 lbs)

Anthony Joshua

United Kingdom

Heavyweight (Unlimited)

David Benavidez

USA

Super Middleweight (168 lbs)

Lightweight (135 lbs)

Zak Miller

United Kingdom

Featherweight (126 lbs)

Naoya Inoue

Japan

Bantamweight (118 lbs)

Jonas Sultan

Philippines

Super Flyweight (115 lbs)

Agron Smakici

Croatia

Jake Paul

USA

Tyson Fury

United Kingdom

Heavyweight (Unlimited)

Ben Whittaker

United Kingdom

Light Heavyweight (175 lbs)

Sukhdeep Singh Bhatti

Canada

Super Welterweight (154 lbs)

Gervonta Davis

USA

Super Featherweight (130 lbs)

Vasyl Lomachenko

Ukraine

Super Featherweight (130 lbs)

Alesia Graf

Belarus

Super Flyweight (115 lbs)

Florian Marku

Albania

Pierre Hubert Dibombe

France

Super Middleweight (168 lbs)

Ukraine

Super Middleweight (168 lbs)

Belarus

Super Middleweight (168 lbs)

Jaime Munguia

Mexico

Super Welterweight (154 lbs)

Tim Tszyu

Australia

Super Welterweight (154 lbs)

United Kingdom

Super Featherweight (130 lbs)

Brad Foster

United Kingdom

Alexis Barriere

Canada

Heavyweight (Unlimited)