Oleksandr Usyk had to be rescued by coaches after FAINTING while attempting to hold his breath underwater during extreme training sessions with the Ukrainian national boxing team as an amateur
- Oleksandr Usyk credits his fantastic endurance to his swimming training
- However the Ukrainian’s attempts to improve his cardio nearly ended in disaster
- In one incident Usyk had to be rescued by teammates after fainting underwater
Unified world heavyweight champion Oleksandr Usyk once fainted during an extreme training exercise during his time as an amateur fighter.