Carl Martin Froch, is a British former professional boxer who competed from 2002 to 2014, and has since worked as a boxing analyst and commentator. He held multiple super-middleweight world championships, including the World Boxing Council (WBC) title twice between 2008 and 2011, the International Boxing Federation (IBF) title from 2012 to 2015, and the World Boxing Association (WBA) title from 2013 to 2015. At regional level, he held the British and Commonwealth super-middleweight titles between 2004 and 2008, and won the Lonsdale Belt in 2006. As an amateur, in the middleweight division, Froch won a bronze medal at the 2001 World Championships, and the ABA title twice.

The Lord Lonsdale Challenge Belt, commonly known as the Lonsdale Belt, is the oldest championship belt in British professional boxing. The 5th Earl of Lonsdale introduced the prize on behalf of the National Sporting Club (NSC), intending it to be awarded to British boxing champions. Arthur Frederick Bettinson, manager of the NSC, introduced terms and conditions regarding the holding of the belt, which ensured its lasting prestige. Freddie Welsh earned the first Lonsdale Belt in 1909 after winning the NSC British Lightweight title. Heavyweight Henry Cooper was the first and only boxer to win three Lonsdale Belts. In 1929 the British Boxing Board of Control (BBBofC) assumed responsibility for awarding the belt, which continues to be bestowed on British champions.