Berlin - Britain's David Haye has launched his bid for another heavyweight title fight against WBC world champion Vitali Klitschko by again insulting the Ukrainian and his younger brother Wladimir.
Haye walked away from a fight with Vitali in 2009 due to problems with the fight contract.
But having lost his WBA title to Klitschko's sibling Wladimir - the IBF, WBO, IBO and now WBA champion - in a unification bout in Hamburg last July the brash Brit has said he wants a re-match or the chance to fight Vitali.
Despite turning 40 in July, Vitali defended his WBC belt against Tomasz Adamek in Poland on Saturday and followed up by saying he would avenge Haye's loudmouth taunts by knocking the Englishman out.
The Londoner has wasted no time in throwing insults back.
"I'll knock him out, I'll smash his jaw," Haye told German daily Die Welt.
"Vitali, I'll fight you, if you are man enough.
"It doesn't matter to me where I fight you, I'll fight you on the moon."
The Brit is running out of time to set up a bout before October 13, when he turns 31, having said he will retire before his next birthday.
Another fight against one of the Klitschko brothers would give Haye another bumper payday and the chance to win another world title.
Having bombarded Wladimir with insults before their July bout -'Bitchko', 'a fraud' and 'a Ukrainian robot' were some of the more memorable - Haye looks set to use the same tasteless tactics against the elder Klitschko.
Predictably, Haye was unimpressed with Klitschko's tenth-round technical knock-out against Adamek, having already taunted Vitali about his age.
"I almost fell asleep because the fight was so boring," said Haye.
"The only exciting moment was when Vitali suddenly slipped in the eighth round."
Having lost to Wladimir on a unanimous decision in Hamburg, Haye sees the fight differently.
"Wladimir ran away when I tried to hit him," said Haye.
"Or he held onto me and pulled me to the ground.
"Unfortunately, the referee had to go through all that cheekiness.
"Vitali has indeed got more balls (than his brother), but he is also a scared rabbit."
Haye blamed a broken toe on his defeat in Hamburg and, like Adamek before him, is substantially lighter and shorter than Vitali.
"Certainly, I have physical limitations, but unlike all the others, I can punch," boasted Haye.
"I can hit harder than the two brothers put together.
"I am also faster, more agile and can hit much, much harder."
Vitali has said he is tired of hearing Haye's insults: "If Haye is lying unconscious on the floor, then he can no longer use his broken toe as an excuse."
Haye said he is just waiting to hear from Klitschko's management.
"(If he wants to fight), then he should get in touch with my management and get the contract in the bag," said Haye.
"He has my contact details. I am waiting for him and urge him on.
"No fight at heavyweight would generate more publicity than Haye against the old Klitschko.
"I am the most popular heavyweight on the planet and with me he will earn the most money."