On March 8th, 25-year-old British boxer Mark Chamberlain (15-0, 11 KOs) quickly defeated his 33-year-old compatriot Gavin Gwinn (17-3-1, 5 KOs) in the undercard of the fight between Anthony Joshua and Francis Ngannou in Saudi Arabia. The confrontation ended with a technical knockout in the fourth round.
This marks the fourth consecutive early victory for Chamberlain. Gwinn had won his previous two fights by early victory as well.