Nikolai Valuev vs. David Haye would agree to face Ruiz in a mandatory defence. Confirmed bouts: Nikolai Valuev vs. David Haye Nikolai Valuev vs. David Haye, billed as "David vs Goliath", was a professional boxing match contested on 7 November 2009 for the WBA heavyweight championship. After regaining the WBA title with a unanimous decision over fellow former Champion John Ruiz Nikolai Valuev had made one defence gaining a very controversial majority decision over Evander Holyfield, he agreed to "Champion in Recess" Ruslan Chagaev, who had given Valuev the only defeat of career. However their fight on 30 May 2009 in Helsinki, Finland at the
Ruslan Chagaev being unable to grant Valuev a rematch in 2009, the WBA stripped Chagaev of the title. He went on to suffer his first professional loss in the same year to unified heavyweight champion Wladimir Klitschko. Chagaev won the WBA (Regular) heavyweight title for a second time by defeating Fres Oquendo in 2014. He made one successful defence, but lost the title to Lucas Browne in 2016. However, after Browne failed a drug test, the WBA reinstated Chagaev as champion, but he was once again stripped of the title in July after failing to pay sanctioning fees. On 28 July 2016