For example: Terence Crawford

Anthony Joshua

United Kingdom

Heavyweight (Unlimited)

Francis Ngannou

Cameroon

Heavyweight (265 lbs)

Tim Tszyu

Australia

Super Welterweight (154 lbs)

Keith Thurman

USA

Welterweight (147 lbs)

Saul Alvarez

Mexico

Middleweight (160 lbs)

Jaime Munguia

Mexico

Super Welterweight (154 lbs)

Vasyl Lomachenko

Ukraine

Super Featherweight (130 lbs)

George Kambosos Jr

Australia

Lightweight (135 lbs)

Denys Berinchyk

Ukraine

Super Lightweight (140 lbs)

Emanuel Navarrete

Mexico

Super Bantamweight (122 lbs)

Zhilei Zhang

China

Heavyweight (Unlimited)

Joseph Parker

New Zealand

Heavyweight (Unlimited)

Conor Benn

United Kingdom

Welterweight (147 lbs)

Peter Dobson

USA

Welterweight (147 lbs)

Adam Azim

United Kingdom

Super Lightweight (140 lbs)

Enock Poulsen

Denmark

Super Lightweight (140 lbs)

Sean O'Malley

USA

Bantamweight (135 lbs)

Marlon Vera

Ecuador

Bantamweight (135 lbs)

Alex Pereira

Brazil

Light Heavyweight (205 lbs)

Jamahal Hill

USA

Light Heavyweight (205 lbs)

Conor McGregor

Ireland

Lightweight (155 lbs)

Michael Chandler

USA

Lightweight (155 lbs)

Jarno Errens

Netherlands

Featherweight (145 lbs)

Steven Nguyen

USA

Featherweight (145 lbs)

Ricardo Ramos

Brazil

Featherweight (145 lbs)

Julian Erosa

USA

Featherweight (145 lbs)

Alexander Volkanovski

Australia

Featherweight (145 lbs)

Ilia Topuria

Spain

Featherweight (145 lbs)

Sean Strickland

USA

Middleweight (185 lbs)

Dricus du Plessis

South Africa

Middleweight (185 lbs)

Leon Edwards

United Kingdom

Welterweight (170 lbs)

Colby Covington

USA

Welterweight (170 lbs)