Tyson Fury has raised concerns that his highly anticipated all-British heavyweight boxing match against Anthony Joshua, scheduled for 11 December at Cardiff's Principality Stadium, might be in jeopardy due to a disagreement between rival promoters. The bout, which will be broadcast on Netflix, was initially confirmed as a partnership between Saudi boxing figure Turki Alalshikh's The Ring and UFC president Dana White. However, Eddie Hearn, Joshua's promoter, has reportedly had disputes with White, claiming the UFC leader's involvement violates their contract. Fury suggested that Hearn's resistance to working with White is causing uncertainty about the fight. "Anthony Joshua and Eddie Hearn are trying to pull out of this fight. They're saying they're not going to fight now," Fury wrote on Instagram. "It's mainly to do with Eddie Hearn's ego." The tension between Hearn and White has been ongoing since the launch of Zuffa Boxing earlier this year. Speaking to IFL TV, Hearn stated that White's involvement in the promotion of the Fury vs. Joshua fight "ain't happening," despite a recent news release from Netflix that included White's name. "Dana White cannot be involved with this fight promotion. Netflix clearly didn't get the memo. No-one talks to each other," Hearn said. "Now we have to go through that process and deal with it. It's a little bit annoying but as I've shown through the UK battle that we won, we stand by our contracts." Fury's promoter, Frank Warren, said that White played a key role in securing the Netflix deal after the fight was confirmed. Fury's recent comments about the possibility of the bout being canceled came after he suggested earlier this month that Joshua might be backing out of the fight, and then called for a third match-up with Oleksandr Usyk. However, there was no official statement from Hearn or Warren in the news release sent out by Netflix to announce the fight. BBC Sport has reached out to Matchroom, Warren's company Queensberry Promotions, The Ring, and Netflix for further comments. The disagreement between Hearn and White is the latest challenge in what has been a long and complicated process to stage the Fury vs. Joshua fight. In 2020, the two camps agreed on the basis of a two-fight deal. In 2021, contracts were signed for an undisputed heavyweight contest, but Fury was forced into a third fight with Deontay Wilder after the American won an arbitration case. In 2022, Joshua accepted a 60-40 split to challenge Fury, but that attempt also fell through. Finally, in 2024, Fury and Joshua signed contracts for the bout, with the date and venue confirmed this week. White was asked whether the fight would actually happen following the announcement, and he said, "I don't know." White made the comment at London's Copper Box, where British heavyweight Johnny Fisher beat Michael Pirotton on his Zuffa Boxing debut. The uncertainty grew on Friday evening, with reports suggesting that the Fury-Joshua fight could be in jeopardy and alternative bouts for 11 December were being considered, including a potential match between Ryan Garcia and the recently retired three-weight undisputed champion Terence Crawford. Crawford appeared surprised by the suggestion and publicly questioned the idea. Then Fury intervened with a social media post, claiming Joshua and Hearn were "trying to pull out" and blaming the dispute largely on Hearn's objection to White. There has been no official statement from Joshua indicating he intends to withdraw.