Chuck Liddell vs. Renato “Babalu” Sobral at UFC 40
Chuck “Ice Man” Liddell was one of the pioneers of the sport when it comes to it gaining popularity with new fans in the mid-2000s.
Long before Liddell coached on The Ultimate Fighter against Couture and then knocked him out to win the UFC light heavyweight title, Liddell connected on Sobral’s face with his shin and dropped the Brazilian competitor.
Edson Barboza Vs Terry Etim at UFC 142
Undoubtedly one of the most spectacular head kick KO’s in all of MMA belongs to Edson Barboza against the UK’s Terry Etim at UFC 142 in Brazil.
Up until this point in his career Barboza had been best known for his devastating leg kicks, but with this perfectly placed spinning hook kick he showed the world he was equally as fearsome when he went upstairs, felling Etim like a tree.
Rashad Evans Vs Sean Salmon at UFC Fight Night 7
Early in his UFC career after winning The Ultimate Fighter Season 2, Evans was primarily still best known as a wrestler, though his punching power was beginning to emerge too.
However, at ‘UFC Fight Night 7’ in 2007 he showed the world that the sky was the limit in terms of his potential when he suddenly produced a devastating shin to the chin of Sean Salmon (who was 9-1 as a professional at the time), sending him to sleep before he hit the canvas.