"Kos" suffered an undisclosed injury and is unfit to compete.
That means the gaping hole in the main card line-up will likely be filled by one of the "Prelim" fights scheduled for FX Channel or Facebook. Expect that announcement to come shortly.
See the current fight card here.
The former American Kickboxing Academy (AKA) product -- who jumped ship for Dethrone Base Camp -- is riding consecutive losses for the first time in his career, one of which ended with a brutal technical knockout finish to the returning Robbie Lawler at UFC 157 last February in Anaheim.
He had a chance to get back on his feet -- and get a little vengeance in the process -- against the soft-spoken Brazilian; however, that scrap will have to wait, assuming they still get to do the deed later this year.
Despite the injury, I'm sure Koscheck is still gunning for this fight.
That's because Maia (18-4) got Jon Fitch, Koscheck's buddy, kicked out of ZUFFA after defeating him by way of unanimous decision at UFC 156 earlier this year in Las Vegas. It was the jiu-jitsu wizard's third straight win since dropping to 170 pounds last July and it's hard not to imagine that a win over "Kos" doesn't get him into the discussion.
When and where they fight -- if they do -- remains to be seen.
UFC 163 features a featherweight championship main event as Brazilian sensation Jose Aldo puts his belt on the line against fellow World Extreme Cagefighting (WEC) import and "Korean Zombie," Chan Sung Jung.
For more news and notes on UFC 163 be sure to visit our complete event archive here.