For example: Terence Crawford

Yuniel Dorticos

Cuba

Cruiserweight (200 lbs)

Mairis Briedis

Latvia

Cruiserweight (200 lbs)

Denys Berinchyk

Ukraine

Super Lightweight (140 lbs)

Viorel Simion

Romania

Featherweight (126 lbs)

Vasiliy Lomachenko

Ukraine

Super Featherweight (130 lbs)

Teofimo Lopez

USA

Lightweight (135 lbs)

Gervonta Davis

USA

Super Featherweight (130 lbs)

Leo Santa Cruz

Mexico

Featherweight (126 lbs)

Oleksandr Usyk

Ukraine

Cruiserweight (200 lbs)

Derek Chisora

United Kingdom

Heavyweight (Unlimited)

Jermall Charlo

USA

Middleweight (160 lbs)

Sergiy Derevyanchenko

Ukraine

Middleweight (160 lbs)

Tony Yoka

France

Heavyweight (Unlimited)

Johann Duhaupas

France

Heavyweight (Unlimited)

Jamel Herring

USA

Lightweight (135 lbs)

Puerto Rico

Featherweight (126 lbs)

Alexander Emelianenko

Russia

Heavyweight (265 lbs)

Magomed Ismailov

Russia

Light Heavyweight (205 lbs)

Tony Ferguson

USA

Lightweight (155 lbs)

Justin Gaethje

USA

Lightweight (155 lbs)

Jon Jones

USA

Light Heavyweight (205 lbs)

Dominick Reyes

USA

Light Heavyweight (205 lbs)

Conor McGregor

Ireland

Lightweight (155 lbs)

Donald Cerrone

USA

Welterweight (170 lbs)