to defend his British title against Tommy Langford, according to promoter Eddie Hearn.
The Matchroom Boxing promoter also said that while North Devon's Langford is a "fair step back" from world middleweight champion Gennady Golovkin, he would still pose a "good fight".
It was widely reported that Eubank was set to take on the Kazakh world champion in a box-office clash, but he missed the deadline to sign for the fight at London's O2 Arena with Kell Brook jumping up in weights to take on the powerhouse known as 'Triple G' instead.
After Birmingham-based Langford stopped latest challenger Timo Laine in Cardiff last month to defend his WBO Intercontinental belt for a fourth time, he was made mandatory challenger for Eubank's Lonsdale Belt – which the current champion claimed off Nick Blackwell in March, live on Channel 5.
Devon-born Langford has previously stated his desire to challenge Eubank, saying he "wasn't going anywhere" after being made mandatory by the British Board of Boxing Control earlier.
"I've spoken to my old man [Barry Hearn] who's now speaking to [Eubank] Snr. because I thought I'd have a little step back," Eddie Hearn told Boxing News
"They're mandated to fight Tommy Langford [in defence of the British title] and they want to do that.
"The purse bids are on August 10th, so we'll see what happens with that.
"He's got a future in the game if he's handled properly, but I can't answer whether that'll happen until a couple of months' time.
"Tommy Langford is a good fight, but it's a fair step back from Golovkin."
British middleweight champion Chris Eubank Jr.