For example: Terence Crawford

Ryan Garcia

USA

Lightweight (135 lbs)

Oleksandr Usyk

Ukraine

Cruiserweight (200 lbs)

Vasiliy Lomachenko

Ukraine

Super Featherweight (130 lbs)

Anthony Joshua

United Kingdom

Heavyweight (Unlimited)

Deontay Wilder

USA

Heavyweight (Unlimited)

Gennady Golovkin

Kazakhstan

Middleweight (160 lbs)

Tyson Fury

United Kingdom

Heavyweight (Unlimited)

Alexander Povetkin

Russia

Heavyweight (Unlimited)

Kubrat Pulev

Bulgaria

Heavyweight (Unlimited)

Dmitry Bivol

Russia

Light Heavyweight (175 lbs)

Derek Chisora

United Kingdom

Heavyweight (Unlimited)

Dillian Whyte

United Kingdom

Heavyweight (Unlimited)

Robert Helenius

Finland

Heavyweight (Unlimited)

Ukraine

Super Lightweight (140 lbs)

Artur Beterbiev

Russia

Light Heavyweight (175 lbs)

Saul Alvarez

Mexico

Middleweight (160 lbs)

Manny Pacquiao

Philippines

Super Welterweight (154 lbs)

Adam Kownacki

Poland

Heavyweight (Unlimited)

Joseph Parker

New Zealand

Heavyweight (Unlimited)

Mairis Briedis

Latvia

Cruiserweight (200 lbs)

Teofimo Lopez

USA

Lightweight (135 lbs)

Andy Ruiz Jr

USA

Heavyweight (Unlimited)

Wladimir Klitschko

Ukraine

Heavyweight (Unlimited)

Yuniel Dorticos

Cuba

Cruiserweight (200 lbs)

USA

Middleweight (160 lbs)

Mikey Garcia

USA

Lightweight (135 lbs)

Mexico

Featherweight (126 lbs)

Daniel Dubois

United Kingdom

Heavyweight (Unlimited)

Junior Fa

New Zealand

Heavyweight (Unlimited)

Mike Tyson

USA

Heavyweight (Unlimited)

Nikolay Valuev

Russia

Heavyweight (Unlimited)