Dereck Chisora joins former rival David Haye's management group

David Haye (left) and Dereck Chisora stare-off ahead of their fight in July 2012. Nick Potts/PA Images via Getty Images

Dereck Chisora says British rival David Haye is the "perfect man" to take him to the next level after announcing a management deal with the former heavyweight world champion

There has been bad blood between the fighters for several years and the pair were famously involved in a brawl in Munich in 2012 following Chisora's world title loss to Vitali Klitschko. The boxers then met in the ring a few months later, with Haye winning via TKO in a grudge match at Upton Park.

Haye, 38, retired earlier this year after a second defeat to Tony Bellew. The former unified cruiserweight and WBA heavyweight world champion set up his management and promotional company, Hayemaker Ringstar, in 2017.

Chisora, 34, who will continue to be promoted by Matchroom Boxing as well as Hayemaker Ringstar, is set to fight Dillian Whyte in London on Dec. 22, although the fight is yet to be officially announced.

"Boxing is a business," Haye said as the deal was announced. "You need characters, you need drama and with Dereck Chisora you are going to get that. When we sat down and spoke to each other it felt like it would be a big task to get the best out of Dereck, but it's a challenge. I like challenges.

"Dereck wants to become the heavyweight champion. Some people think that's too tall a task but for me, if Dereck can do what I've done with myself behind closed doors then anything is possible.

"Hopefully he'll be fighting before the end of the year in a big fight and you will see the best of Dereck Chisora."

"Every time David came into the ring he was in perfect shape," Chisora said. "I've been with him now for two weeks and everything we are doing is working towards Dec. 22. He is the perfect man to take me to another level."