Klitschko
About “Klitschko”:
Vitali Klitschko and Wladimir Klitschko, known as the Klitschko Brothers, are Ukrainian former professional boxers. During their peak years between 2004 and 2015, they were considered the dominant world heavyweight champions of their era, and among the most successful champions in boxing history. In 2011, they entered the Guinness World Records book as brothers with most world heavyweight title fight wins.
