Billy Joe Saunders has told world middleweight No.1 Gennady Golovkin he needs to make him a better offer or agree to fight him in England.

WBA-IBF champion Golovkin's team last week made Saunders an offer believed to be £2.2million to face the Kazakh knockout machine in a world title unification clash.

Saunders (23-0, 12 KOs), 26, won the WBO belt after flooring Irishman Andy Lee twice in the third round before earning a unanimous points decision last month.

Golovkin (34-0, 31 KOs), 33, is on a mission to hold all four world title belts and hopes to face Saunders on April 23 before another unification fight with Mexico's WBC champion Saul 'Canelo' Alvarez (46-1-1, 32 KOs) late this year.

But Saunders, from Hatfield, says he will only consider an improved offer or the concession of him getting home advantage.

"An offer has been made but people need to understand I don't have a loss on my record and it's not like Golovkin's last opponent David Lemieux who had lost twice before he fought him," Saunders told ESPN.

"I believe I'm a better champion than Lemieux was so deserve more. They [Golovkin's team] are not chucking peanuts around but I'm not going in there just to pick the money up.

"If I take the fight with Golovkin I genuinely believe I could beat him but they have got to put some proper money on the table and if they do that then I will do it.

"I could earn that money against someone else. They are offering life changing money but it's not just about that because it would be a big risk for me.

"They've got to pay me more money than I would get for the Chris Eubank Jr rematch.

"Now I'm world champion I've got options and I could make my money elsewhere. Most definitely the fight with Golovkin will happen at some point, most definitely. He wants to fight me because he wants to unify all the belts."

Saunders -- one of 12 world champions from Britain -- is confident the fight with Golovkin will happen, but is not certain yet it will be his next fight which he expects to be in March or April.

The Briton accepts he would be a big underdog should he face GGG in a first defence with the US-based Kazakh who is on a 21-fight knockout run with 15 consecutive title defences.

"I'm not ruling out fighting Golovkin next, I've got to talk to my manager and Frank Warren about it," Saunders said. "I will fight him but I would like it to be in England and if they can do that I would take a bit less, but they have to give me something.

"But there are other middleweights out there for me like [British champion] Nick Blackwell and unbeaten American fighters or even Lemieux.

"I would be a big underdog against Golovkin but I believe I could pull off the upset."

Saunders' promoter Frank Warren is planning more talks next week with K2 Promotions, who represent California-based Golovkin.