Ketlen Vieira just stunned the UFC world.
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In her third UFC fight, the bantamweight remained unbeaten by submitting contender Sara McMann early in the second round:
Vieira was in trouble in the first round, as McMann earned mount and pummeled on her opposition. Vieira was able to escape and nearly had a heel hook to end the round.
It's a stunning upset of McMann, who hoped to make her case for earning another title shot.
She had won her last three consecutive bouts heading into Saturday night. Vieira is 9-0, winning her last three UFC fights.