Dating back to John L. Sullivan in the 19th century, there has always been a title for the man who beat the man. That title is the lineal champion. Tyson Fury is the current lineal champion of the heavyweight division after defeating Wladimir Klitschko in 2015 and his dad, John, has now explained the importance of the title... Subscribe to BT Sport Boxing on YouTube ➡️ http://www.youtube.com/c/btsportboxing Follow BT Sport Boxing on Twitter ➡️ http://twitter.com/btsportboxing Join our BT Sport Boxing Facebook Group ➡️ https://www.facebook.com/groups/BTSportBoxing Follow us on Instagram ➡️ http://instagram.com/btsportboxing Read more on upcoming fights on BT Sport and BT Sport Box Office ➡️ https://www.bt.com/sport/box-office/