David Haye has been challenged to move on from the his easy win over Audley Harrison by signing a deal to fight Vitali Klitschko in a world heavyweight title unification bout.
Klitschko has offered Haye a "50-50" purse split for the fight and says he is willing to come to England to make it happen. Previous negotiations have fallen apart due to wrangles over TV revenues.
Klitschko's bid comes as the fall-out from the dismal MEN Arena fight continues. Haye's suggestion that he bet on a third round win will be discussed by the British Board of Control, and there have also been calls for Harrison's purse to be withheld.
Klitschko told BBC Radio Five Live: "I'm ready any minute to sign a 50-50 contract. We are both world champions so let's fight. Let's make the fight in the spring time - I'm ready, the question is for David Haye.
"I hear about the great venue of Madison Square Garden for this fight. But I'm ready to fight in Germany, the United States or Great Britain. Where the most money is on the table... let's fight in this place."
Haye was left out in the cold after failing to agree terms with either Klitschko earlier this year. Instead, the brothers signed to meet lightly-regarded Briton Dereck Chisora, with Wladimir taking on the Londoner in December.