![Ukrainian WBA, WBO, IBO and IBF heavyweight boxing world champion Vladimir Klitschko (R) lands a punch during his title fight against challenger Bulgarian heavyweight boxer Kubrat Pulev in Hamburg, November 15, 2014. Ukrainian WBA, WBO, IBO and IBF heavyweight boxing world champion Vladimir Klitschko (R) lands a punch during his title fight against challenger Bulgarian heavyweight boxer Kubrat Pulev in Hamburg, November 15, 2014.](https://c8.alamy.com/comp/2CWJ65N/ukrainian-wba-wbo-ibo-and-ibf-heavyweight-boxing-world-champion-vladimir-klitschko-r-lands-a-punch-during-his-title-fight-against-challenger-bulgarian-heavyweight-boxer-kubrat-pulev-in-hamburg-november-15-2014-world-heavyweight-champion-vladimir-klitschko-knocked-out-bulgarian-challenger-kubrat-pulev-with-a-fierce-left-hook-in-the-fifth-round-on-saturday-to-retain-his-ibf-title-and-end-his-opponents-unbeaten-record-reutersfabian-bimmer-germany-tags-sport-boxing-2CWJ65N.jpg)
Ukrainian WBA, WBO, IBO and IBF heavyweight boxing world champion Vladimir Klitschko (R) lands a punch during his title fight against challenger Bulgarian heavyweight boxer Kubrat Pulev in Hamburg, November 15, 2014.
![ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ - ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -](https://previews.123rf.com/images/lesik/lesik1406/lesik140600223/28765431-odessa-ukraine-31-may-2014-world-heavyweight-boxing-champion-alexander-usyk-ukraine-and-cesar.jpg)
ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -
![On This Day - Nov 30 2014: Tyson Fury becomes new European and British heavyweight boxing champion - The Irish News On This Day - Nov 30 2014: Tyson Fury becomes new European and British heavyweight boxing champion - The Irish News](https://www.irishnews.com/picturesarchive/irishnews/irishnews/2017/11/29/191823723-9d5264eb-6bde-4be4-aa91-c428f984989f.jpg)
On This Day - Nov 30 2014: Tyson Fury becomes new European and British heavyweight boxing champion - The Irish News
![ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ - ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -](https://previews.123rf.com/images/lesik/lesik1406/lesik140600239/28765447-odessa-ukraine-31-may-2014-world-heavyweight-boxing-champion-alexander-usyk-ukraine-and-cesar.jpg)
ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -
![ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ - ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -](https://previews.123rf.com/images/lesik/lesik1406/lesik140600215/28765423-odessa-ukraine-31-may-2014-world-heavyweight-boxing-champion-alexander-usyk-ukraine-and-cesar.jpg)
ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -
![ODESSA, UKRAINE -31 May 2014: World heavyweight boxing champion, – Stock Editorial Photo © ALesik #47346147 ODESSA, UKRAINE -31 May 2014: World heavyweight boxing champion, – Stock Editorial Photo © ALesik #47346147](https://st.depositphotos.com/1016729/4734/i/950/depositphotos_47346147-stock-photo-odessa-ukraine-31-may-2014.jpg)
ODESSA, UKRAINE -31 May 2014: World heavyweight boxing champion, – Stock Editorial Photo © ALesik #47346147
![ESPN Ask Steven: Who was the last American boxer to hold a world heavyweight title? | ESPN Blogs | ESPN.co.uk ESPN Ask Steven: Who was the last American boxer to hold a world heavyweight title? | ESPN Blogs | ESPN.co.uk](http://en.espn.co.uk/PICTURES/CMS/65800/65899.3.jpg)
ESPN Ask Steven: Who was the last American boxer to hold a world heavyweight title? | ESPN Blogs | ESPN.co.uk
![World heavyweight boxing champion Vladimir Klitschko of Ukraine celebrates after defeating Australian challenger Alex Leapai during their WBO heavyweight title fight in Oberhausen April 26, 2014. Klitschko won after knock out in World heavyweight boxing champion Vladimir Klitschko of Ukraine celebrates after defeating Australian challenger Alex Leapai during their WBO heavyweight title fight in Oberhausen April 26, 2014. Klitschko won after knock out in](https://c8.alamy.com/comp/2CWM6MX/world-heavyweight-boxing-champion-vladimir-klitschko-of-ukraine-celebrates-after-defeating-australian-challenger-alex-leapai-during-their-wbo-heavyweight-title-fight-in-oberhausen-april-26-2014-klitschko-won-after-knock-out-in-round-six-reuterskai-pfaffenbach-germany-tags-sport-boxing-tpx-images-of-the-day-2CWM6MX.jpg)
World heavyweight boxing champion Vladimir Klitschko of Ukraine celebrates after defeating Australian challenger Alex Leapai during their WBO heavyweight title fight in Oberhausen April 26, 2014. Klitschko won after knock out in
![ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ - ODESSA, UKRAINE -31 May 2014: World Heavyweight Boxing Champion, Alexander USYK - Ukraine And Cesar David CRENZ -](https://previews.123rf.com/images/lesik/lesik1406/lesik140600217/28765428-odessa-ukraine-31-may-2014-world-heavyweight-boxing-champion-alexander-usyk-ukraine-and-cesar.jpg)