TMZSports.com
Julio César Chávez Jr. is ready to step in and defend Mike Tyson's honor ... telling TMZ Sports he plans to whoop Jake Paul in the ring in June to avenge the boxing legend.
Remember, Paul -- 11-1 as a pro boxer -- beat Tyson by unanimous decision in an eight-round bout in November 2024, the most watched fight ever.
Launch Gallery Launch Gallery Getty