Chris Eubank Jr launched a scathing attack on Eddie Hearn and Frank Warren, describing boxing's two leading promoters as "scumbags".
The 35-year-old makes his return to the ring after 12 months out on October 12 when he faces Polish fighter Kamil Szeremeta on the undercard of the undisputed light-heavyweight clash between Artur Beterbiev and Dimitry Bivol in Saudi Arabia.
Middleweight/super-middleweight contender Eubank Jr teamed up with promoter Ben Shalom and BOXXER earlier this year after his contract with Kalle Sauerland's Wasserman Boxing expired, but was also previously signed to both Hearn and Warren earlier in his career.
Warren has publicly criticised Eubank Jr for his decision to fight Szeremeta instead of several boxers from his own stable including Hamzah Sheeraz and Denzel Bentley, while Hearn has previously also gone on record about the son of British legend Chris Eubank's exuberant financial demands in negotiating fights.