(CNN) -- David Haye claims that Wladimir Klitschko will "freeze like an iceberg" when the heavyweight boxing champions finally meet in Hamburg on July 2, after the date and venue was confirmed on Wednesday. 

The British fighter will put his WBA belt on the line against the Ukrainian's IBF/WBO and IBO crowns in a long-awaited unification fight at the 57,000-capacity Imtech Arena. 

The German city is the adopted home of the 35-year-old Klitschko and his elder brother Vitali, who Haye also hopes to fight before his planned retirement in October. 

"It's great to finally find out the date and venue," Haye said on his website. "I've been training for this fight since the end of 2010 and it's nice to now have a concrete date to work towards. 

"Hamburg is an accessible city for a lot of British fans, so I'm expecting a huge turnout for what is undoubtedly the biggest boxing event of the year. We're going to have an army of Brits invading Germany on July 2nd and I can't wait to sample the atmosphere." 

Haye mocks 'fat' Solis after farcical Klitschko defeat 

The Klitschko camp confirmed that the details had been finalized with a statement on their Facebook page: "Let's get ready to rumble!!! The highly anticipated fight is on." 

The showdown between two of boxing's biggest names has been on the cards since Haye stepped up from the cruiserweight division where he was also a champion, but he pulled out of a planned fight with Wladimir in 2009 due to a back injury. 
What body part was affected?
but he pulled out of a planned fight with Wladimir in 2009 due to a back injury.