For example: Terence Crawford

Vladyslav Sirenko

Ukraine

Heavyweight (Unlimited)

Kamil Sokolowski
Juan Francisco Estrada

Mexico

Super Bantamweight (122 lbs)

Roman Gonzalez

Nicaragua

Super Flyweight (115 lbs)

United Kingdom

Krzysztof Glowacki

Poland

Cruiserweight (200 lbs)

Denys Berinchyk

Ukraine

Super Lightweight (140 lbs)

Jose Sanchez

Chile

Alexander Povetkin

Russia

Heavyweight (Unlimited)

Dillian Whyte

United Kingdom

Heavyweight (Unlimited)

Serhii Bohachuk

Ukraine

Super Welterweight (154 lbs)

Brandon Adams

USA

Middleweight (160 lbs)

Saul Alvarez

Mexico

Middleweight (160 lbs)

Avni Yildirim

Turkey

Super Middleweight (168 lbs)

Fedor Chudinov

Russia

Super Middleweight (168 lbs)

Isaac Chilemba

Malawi

Light Heavyweight (175 lbs)

Curtis Blaydes

USA

Heavyweight (265 lbs)

Derrick Lewis

USA

Heavyweight (265 lbs)

Jan Blachowicz

Poland

Light Heavyweight (205 lbs)

Israel Adesanya

Nigeria

Middleweight (185 lbs)

Islam Makhachev

Russia

Lightweight (155 lbs)

USA

Lightweight (155 lbs)

Petr Yan

Russia

Bantamweight (135 lbs)

Aljamain Sterling

USA

Bantamweight (135 lbs)

Kamaru Usman

Nigeria

Welterweight (170 lbs)

Brazil

Welterweight (170 lbs)

Alexander Volkov

Russia

Heavyweight (265 lbs)

Alistair Overeem

Netherlands

Heavyweight (265 lbs)

Conor McGregor

Ireland

Lightweight (155 lbs)

Dustin Poirier

USA

Lightweight (155 lbs)