Anthony Joshua will defend his WBA, WBO and IBF heavyweight titles against Alexander Povetkin at Wembley on September 22, his promoter Eddie Hearn has announced.
Russia's Povetkin is the mandatory challenger to his WBA title, and by fighting him Joshua should secure greater freedom in selecting his next opponent.
The 28-year-old Briton had been in training while negotiations with WBC champion Deontay Wilder stalled, but could yet fight the American in April 2019.