American heavyweight contender Jarrell Miller has split from his longtime promoter Dmitry Salita, according to the 36-year-old.

Miller (26-1-2, 22 KOs) was scheduled to face Britain's in-form Fabio Wardley in a Portman Road headliner on June 7, though withdrew from the matchup on April 30 after sustaining a shoulder injury during training camp.

He has since been replaced by unbeaten Australian contender Justis Huni (12-0, 7 KOs), who Queensberry chief Frank Warren believes could pose an even bigger threat to Wardley.

Nonetheless, the Brooklyn-born veteran had been attempting to breathe new life into his career under a new trainer in Derrick "Bozy" Ennis.

In a statement released on social media, he said: "There's a lot of 'he said, she said' [expletive] going on right now, so let's clear it up. Dmitry Salita and Greg Cohen are no longer my promoter, I have no promoter. I've been dealing with a slight setback and will be good in another week. The only person that can speak is in this pic, it's my manager as shown in the picture above, Spencer Brown. Absolutely no-one else. More updates coming soon."

Ennis, known most notably as father and head coach for son and unified welterweight titleholder Jaron Ennis (34-0, 30 KOs), has three world champions in his stable.

Stephen Fulton (23-1, 8 KOs) emerged a clear winner in his Brandon Figueroa rematch to win the WBC featherweight title in February. Three months prior, Oshae Jones (8-0, 3 KOs) unified the women's IBO/IBF junior middleweight titles against Femke Hermans.

Ranked No. 4 with the WBA, Miller would've been hoping for an expedited route to full world honours by showcasing his experience against top contender Wardley, who remains untested at world level.

Miller's unbeaten run was ended in Riyadh, Saudia Arabia, by Daniel Dubois, who now holds the IBF title, in December 2023. He could only manage a gruelling 12-round majority draw on his return against former unified champion Andy Ruiz Jr eight months later.

After twice testing positive for performance-enhancing drugs, Miller endured a four-year inactive stretch. He wanted a resurgent splash against another Brit, six years after a trio of positive tests saw him miss out on career-high earnings and an Anthony Joshua showdown.

At one time a WBA junior welterweight title challenger, Salita, who first promoted Miller while still an active fighter in 2011, has been aligned with Big Baby for more than a decade and signed a co-promotional deal alongside Cohen in 2014.

Their relationship has been far from smooth sailing since, though Miller cited Salita as the reason why a proposed Derek Chisora showdown collapsed in November. Another Salita-promoted heavyweight, Otto Wallin, took and lost via 12-round decision Feb. 8.