Faber, who hasn't worn a world title in nearly four years, was completely outmatched by the 25-year-old Brazilian. After the fight, a clearly disappointed Faber broke down his third consecutive loss in pursuit of a world title.
"I knew he would try to keep it at a distance, so it was a little harder for me to get in on takedowns," Faber told UFC commentator Joe Rogan. "He hurt me pretty early with a knee to the ribs. I think my rib might be broken."
Barao put on a technical clinic on the feet.
He outpointed Faber throughout the entire bout and stuffed every takedown attempt. It was a brilliant performance that highlighted the arrival of a new bantamweight star.
This loss has to be devastating for Faber. Since losing his WEC title to Mike Brown in November 2008, Faber has struggled to get the job done against elite level opposition.
Perhaps Faber's best years are behind him. If not, what does he need to do to rebound?
Here are five things we learned about Urijah Faber.