The infamous double knockdown is one of the rarest sights in MMA but it was once again witnessed during the conclusion to a fight between Eder Lopes and Diogo Neves in Portugal.

Lopes and Neves both threw heavy left hooks at exactly the same moment during the first round of their fight in the Lisbon and it was the kickboxing world champion Lopes who managed to get to his feet as the referee called a halt to the fight.

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The fight took place under the banner of regional promotion ECE and they must be counting their blessings as the clip continues to go viral and spread around the globe on social media.

Flip the Page to see the Viral Double KO: