The rear naked choke RNC is a chokehold in martial arts applied from an opponent's back. The choke has two variations:  in one version, the attacker's arm encircles the opponent's neck and then grabs their own biceps on the other arm see below for details ; in the second version, the attacker clasps their hands together instead after encircling the opponent's neck. This variant is considered to be a " blood choke " because it restricts blood flow to the brain via the carotid arteries. When applied correctly, it can cause temporary unconsciousness in a few seconds.
UFC Fight Island 8 video: Umar Nurmagomedov chokes Sergey Morozov unconscious in octagon debut
UFC on ESPN 18 results: Gina Mazany TKOs Rachael Ostovich with kicks
For mixed martial arts' fans with an affinity for the ground game, there is nothing sweeter than seeing a technically savvy grappler submit his opponent. With so many variations of locks and chokes available in MMA , there are an abundance of techniques to force an opponent to tap out. Forcing the arm against the arteries in the neck, the arm-triangle choke can put an opponent to sleep in seconds. As is the case with most chokes, the rear naked choke may not be the most painful, but the results are impressive none the less.
UFC on ESPN 18 results: Gina Mazany stops Rachael Ostovich with body kicks
The UFC's second fight card of the new year closed with a bout between two fighters who were looking to make an impression. Chiesa and Magny sit eighth and ninth, respectively, in the UFC's rankings of the welterweight division. Beyond the result, Chiesa's performance will help his stock rise.
Click on the fight below and then scroll down to see in-fight live stats and full results, courtesy of Fight Analytics. PT on Wednesday, Jan. NOTE: To select the appropriate fight, click on the images with the yellow name plates at the bottom of the Fight Analytics window and drag until you see the fight you are interested in.