KNOCKOUT IN 6 SECONDS From the archives: Sam Fournier vs. Marco Giambruno — This moment sets the record for fastest KNOCKOUT in #LightsOutXF history. Watch the full fight in its entirety and prep for #LightsOutXF24 on May 10th, by downloading the lightsoutsportstv app! Available on iOS and Android. #mma #knockout #mmahighlights #ko #combatsports