All Blacks star Sonny Bill Williams is to fight former heavyweight contender Francois Botha on November 17 in Durban.
Fight promoter Thinus Strydom said that arrangements for the fight have already been concluded.
Williams is the reigning New Zealand heavyweight champion, while Botha has previously fought Mike Tyson, Lennox Lewis, Evander Holyfield and Wladimir Klitschko.
Japan-bound Williams has won all five of his professional bouts.