Jose Aldo retained the Ultimate Fighting Championship featherweight title Saturday night with a fouth-round technical knockout of “The Korean Zombie” Chan Sung Jung in the main event of UFC 163 in Rio de Janeiro.
Aldo was winning the fight but seemed to be tiring when Jung’s right shoulder appeared to pop out of place after he landed a punch at an awkward angle. Aldo capitalized with a series of kicks and punches as Jung went to the mat wincing in pain, prompting the stoppage.
Also, Phil Davis upset former light heavyweight champion Lyoto Machida by unanimous decision.
Davis secured late takedowns in each of the first two rounds to earn the favor of all three judges.