Sunny Edwards has claimed the IBF flyweight world title with a unanimous points victory over Moruti Mthalane.
The Londoner dominated the exchanges at Bethnal Green's York Hall to administer the veteran South African's first defeat since 2008.
Edwards' superiority over the 12 rounds was reflected on the scorecards with the judges scoring it 118-111, 120-108 and 115-113.
The 25-year-old's victory saw him become a world champion like his brother Charlie, who did so at the same weight in 2018.
Liverpool's Liam and Callum Smith had previously been the only British brothers to both become world champions.
This was Mthalane's 11th world title contest in a career which has spanned more than 20 years.
But Edwards' jab, judgement of distance and hand speed troubled the 38-year-old until the Briton tired in the closing stages.
Mthalane forced Edwards onto the back foot over the last two rounds, but he could not deliver the knockout blow he needed to keep his title.