Horodecki, who attended a press conference in Los Angeles on Wednesday morning for the blockbuster event, will not be re-licensed by the California State Athletic Commission in time to face UFC veteran Dan Lauzon due to an injury sustained in training.
"Chris has a bulging disk in the base of his neck," Horodecki's head trainer and manager Shawn Tompkins told Sherdog.com Wednesday evening. "It's restricting 80 percent of his strength in his right arm and the doctors wouldn't approve [the fight]."
Tompkins said rumors that the 21-year-old Canadian had failed a neurological exam were completely false.
The baby-faced Horodecki (12-1) fought last in California for the International Fight League in March 2007.
CSAC Assistant Executive Officer Bill Douglas said Atencio and himself are working closely to exhaust all efforts to find a suitable replacement in time to salvage the featured lightweight bout that was to have kicked off a stacked pay-per-view.
“Affliction has been phenomenal during this licensing process, so when something like this happens, we can all keep moving and we will do everything we can to try and assist them as much as possible,” said Douglas from the CSAC’s Sacramento office Wednesday evening.
TJ DeSantis contributed to this report.
Note: This article was updated at 10:23 EST on Jan. 21 with info that it was a bulging disk knocking Horodecki off the card.