Amateur MMA fighter Brenda Oliva was left unconscious on the canvas after being knocked out by a sickening kick just three seconds into her fight.
Oliva was competing in an amateur cage meeting in her native Argentina against rival Julieta Martinez. They were competing as part of the Samurai Fight House 4 card, which offered a range of professional and amateur outings.
The official signalled the fighters could commence with the bout, prompting both female stars to rush towards each other. They quickly took to the centre of the ring with a brief grapple before Martinez landed a brutal kick to the head of her rival.
