Both fighters were admitted to hospital following the fight, with Whittaker bagging US$100,000 in bonuses and the respect of every UFC fan on the planet.
Everyone except Romero it seems, who believes that he deserved to win the bout.
The devastating Cuban slogger landed some impressive shots on Whittaker, including several shots on the chin.
Two of three judges scored the fight 48-47 in favour of Whittaker, with the other having Romero winning by the same margin.
The 41-year-old criticised officials for their selection and then attacked them for denying him the chance at a third attempt to make the weight.
From his hospital bed, Romero declared "I am the champ" after losing the fight.
"Tonight, I don't feel that I lost," Romero said in a video shared to his Facebook.
"I am the champ. It's like the movie, like Rocky Marciano. Today, I am black Rocky, the people's champ."
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