BERLIN - WBO/IBF Heavyweight champion Wladimir Klitschko will fight British contender David Haye in Bundesliga club Schalke's football stadium on June 20, the champion's manager said Tuesday.

"We have reached an agreement with Schalke 04 and the stadium," Klitschko's manager Bernd Boente told reporters. The stadium, with a capacity of just over 61,000, has a retractable roof.