Chris Eubank Jnr is expected to sign a £3million deal this week to fight Kazakhstan’s Gennady Golovkin in September in London.

The O2 Arena is the preferred venue and after 11 days of negotiations promoter Eddie Hearn has told Sportsmail an agreement is 'very close'.

It is understood Eubank Jnr would stand to pocket at least £3million for a hugely ambitious middleweight assignment against the most devastating puncher in the sport.

Given the way the proposed deal is structured, a bumper pay-per-view audience on Sky Box Office could see the British champion's purse doubled.

Chris Eubank Jnr is close to signing a seven-figure deal to fight Gennady Golovkin in London in September

Gennady Golovkin (left) is the current WBA, WBC, IBF and IBO middleweight world champion

GENNADY GOLOVKIN Born: April 8, 1982, Karaganda, Kazakhstan Record: 35-0-KO32 Current titles: WBA, WBC, IBF, IBO world middleweight champion Advertisement

CHRIS EUBANK JNR Born: September 18, 1989, East Sussex, England Record: 23-1-KO18 Current titles: British middleweight champion Advertisement

Considering Golovkin has won all 35 of his fights, 32 by knockout, and acquired the WBC, WBA and IBF world titles, Eubank is actively chasing a fight in which he would be a major underdog.

Talks with Sky on Monday were described as 'positive' by Hearn, who is considering September and October dates for the bout. September at The O2 are the preferred option.

He told Sportsmail: 'It is very close to being made. We had a positive meeting with Sky and the major details are nearly all agreed. We still have stuff to discuss but I expect both sides to sign by the end of this weekend.

Eddie Hearn revealed that negotiations are 'very close' to being concluded between both sides

Golovkin has won all 35 of his professional bouts and has one of the highest knockout percentages in boxing

'We have been negotiating and each camp is up for it and September is in my mind at the O2 in London. But we are nearly at the point where each side needs to put up or shut up.

'They have taunted each other on social media and both say they want it - now the fighters need to prove it by signing.'

Hearn added: 'It's funny, I am still waiting for a call from the Eubanks to say this was all for a bit of hype. But it's not – they genuinely want Chris Eubank to fight the most feared boxer on the planet in Gennady Golovkin. They are deadly serious about the fight.'