A fight between the pair has been touted since Khan’s comeback fight in April, but stalled negotiations have led Hearn to find another opponent for Brook’s next contest.
Khan returned from a two-year boxing hiatus in spring, knocking out Phil Lo Greco in 39 seconds.
Following the bout, Brook entered the ring and trash-talked the Bolton fighter, who seemed uninterested despite years of clamour from British boxing fans for a fight between the two.
Brook was ringside once more for Khan’s last fight against Samuel Vargas, who he defeated via unanimous decision despite a wobbly display during which he hit the canvas.
In his post-match interview the welterweight expressed his desire to face Manny Pacquiao over the nearby Sheffield pugilist, but that wish looks increasingly unlikely.
Both fighters are promoted by Hearn, who is eager for the domestic match-up – which he believes could take place in a stadium.
Despite last fighting at super welterweight, Brook begrudgingly agreed to drop down to 147lbs to make the fight, but recent disputes over a rehydration clause have become a brick wall in proceedings.
The naturally-smaller Khan wants it so that both fighters weigh up to 147lbs the day before the fight but can’t weigh more than 157lbs on the night.
It is common practice under IBF regulations, which Brook had to abide by during his 33-month reign as welterweight world champion.
But as the fight would be a domestic bout there is no obligation for Brook to agree to such a term, and Hearn said such a stipulation is unlikely.
The English promoter also confirmed to ThaBoxingVoice that Brook, who hasn’t fought since March – before Khan’s comeback fight – will face another opponent before the potential scrap with Khan.
“Brook’s gonna go December 8,” said Hearn.
“And then hopefully we get the [Khan vs Brook] fight in February, March 2019.
“Brook will headline in Sheffield – there will be a couple other Brits [on the card].
“We will announce his opponent later this week. There’ll be some US stars on that card too.”
Source : EXPRESS