Watch how Mackenzie Dern nearly submits Gillian Robertson with face-reddening choke to retain UFC 330 title; check viral video

Mackenzie Dern successfully defended her strawweight championship at UFC 330. She secured a unanimous decision victory against challenger Gillian Robertson on Saturday night. Dern came close to a submission in the first round, but Robertson survived the dangerous hold. The subsequent rounds saw limited striking action and much grappling on the canvas. Dern's daughter offered vocal support from her front-row seat during the bout.