Zhang came from 2 fights KO win against Joe Joyce, while Joseph Parker upset Deontay Wilder last month on a fight in Riyadh.
This fight is part of the 3 fights in Riyadh, Saudi Arabia, but it's a title fight so it's worth discussing.
Quote
March 8: Riyadh, Saudi Arabia
Anthony Joshua vs. Francis Ngannou, 12 rounds, heavyweights
Title fight: Zhilei Zhang vs. Joseph Parker, 12 rounds, for Zhang's WBO interim heavyweight title
Title fight: Rey Vargas vs. Nick Ball, 12 rounds, for Vargas' WBC featherweight title
Anthony Joshua vs. Francis Ngannou, 12 rounds, heavyweights
Title fight: Zhilei Zhang vs. Joseph Parker, 12 rounds, for Zhang's WBO interim heavyweight title
Title fight: Rey Vargas vs. Nick Ball, 12 rounds, for Vargas' WBC featherweight title
https://www.espn.ph/boxing/story/_/id/12508267/boxing-schedule
https://www.boxinghana.com/zhilei-zhang-to-face-joseph-parker-on-joshua-ngannou-card-in-march/