Ovince Saint Preux is an American professional mixed martial artist who competes in the light heavyweight division of the UFC. A professional competitor since 2008, Saint Preux has also formerly competed for Strikeforce, the XFC, and Shark Fights. He is known for his unorthodox fighting style, and has gained notability and notoriety for having won four fights using the rare Von Flue choke submission, leading to fans renaming it to the "Von Preux choke".

A chokehold, choke, stranglehold or, in Judo, shime-waza is a general term for a grappling hold that critically reduces or prevents either air (choking) or blood (strangling) from passing through the neck of an opponent. The restriction may be of one or both and depends on the hold used and the reaction of the victim. While the time it takes for the choke to render an opponent unconscious varies depending on the type of choke, the average across all has been recorded as 9 seconds.