Henry Cejudo declared himself the best combat sports athlete of all time and the former Olympic champion has a legitimate claim after adding a UFC bantamweight title to his flyweight crown.
His Brazilian opponent, Marlon Moraes, came into the fight as the favourite and looked serene in the opening round, comprehensively out-striking his opponent.
The former champion TJ Dillashaw gave up the belt having been found to have used a banned substance so Cejudo and Moraes locked horns for the vacant title in Chicago.
Henry Cejudo claimed the bantamweight title to go with his flyweight crown and said he is the best to ever do it
He beat Brazilian Marlon Moraes in the third round as referee Marc Goddard waved off the main event contest
Cejudo pushed the pace and his opponent simply could not handle his output, suffering a number of telling blows
And after five minutes it looked like Moraes was the man most likely to seize the crown. But Cejudo, who famously beat Demetrious 'Mighty Mouse' Johnson, showed championship class in making the necessary adjustments.
His opponent was the bigger man and perhaps the weight cut played a part, slowing him down as the fight wore on. Cejudo put a stunning pace on the Brazilian and started becoming the aggressor early on in the second round.
He found plenty of success with knees from the clinch, dazing Moraes to the head and punishing him to the body.
In the third round, Moraes looked a spent force and it was a matter of time before he succumbed. Cejudo hauled his man to the canvas and landed brutal ground and pound. The referee Marc Goddard mercifully intervened and Cejudo was crowed two-weight world champion.
Afterwards he declared: 'My name is CCC, Olympic champ, flyweight champ and bantamweight champ. I'm the best combat sports athlete of all time.
Valentina Shevchenko retained her flyweight title against Jessica Eye with one of the most brutal knockouts in UFC history.
Valentina Shevchenko (left) knocked out Jessica Eye with a brutal head kick in the co-main event of the evening
The challenger was out cold for a long time but thankfully came around and was helped from the octagon
Shevchenko retained her title and she will take some beating on the evidence of Saturday's performance
The champion landed some scything kicks to the
