April 15 in London will be a fight between the interim WBO world heavyweight champion Joe Joyce (15-0, 14 KOs) and Zhilei Zhang (24-1-1, 19 KOs).
For the Briton, this will be the first defense of the interim World Boxing Organization trophy, which he won in September by defeating Joseph Parker. Joyce is also the official contender for the WBO full-length championship belt.
In his last professional appearance, Zhang lost on points to Filip Hrgovic in the IBF eliminator. The Chinese will perform for the first time in front of the British public.