Kayla Harrison reacts to her dominant second round submission victory over Holly Holm at UFC 300. #UFC #MMA #UFC300 Subscribe for behind the scenes UFC content SUBSCRIBE HERE: youtube.com/channel/UCTvuMRhyrTVgbEdLyymZq8g?sub_confirmation=1 FOLLOW US: Full Send MMA Instagram | instagram.com/fullsend_mma The OG Instagram | instagram.com/ogshawnymack FULL SEND SUPPS AVAILABLE NOW: supplements.co