It was brother vs brother at the 2016 LA Grand Slam, and those two brothers were two of the best in competitive Brazilian jiu-jitsu: Joao Miyao and his twin brother, Paulo.
Joao immediately sat to guard and the majority of their under-seven-minute match was Paulo trying to pass his brother’s open guard.
At about six minutes in, Joao stood up and attacked Paulo’s back, getting his hooks in. Paulo put his hands on the ground, and shook his brother off. Unfortunately, Joao rolled in the perfect position for an armbar, earning the tap.
Winner via armbar: Joao Miyao
Those with a FloGrappling account can watch a replay of the match here.