/cdn.vox-cdn.com/uploads/chorus_image/image/47572489/usa-today-8714685.0.jpg)
With less than three weeks until showtime (Sat., Nov. 21, 2015), Matt Brown has been forced out of the UFC Fight Night 78 Welterweight main event against Kelvin Gastelum, according to FOX Sports.
"The Immortal" injured his ankle in training. The good news is that it is not considered serious enough to keep him sidelined for an extended period.
Ultimate Fighting Championship (UFC) eventually confirmed the bad news on Monday night. While a search is currently underway, it's unclear at this time if a suitable replacement can be found to tangle with The Ultimate Fighter (TUF) 17 winner on such short notice.
If Brown vs. Gastelum is postponed for a later date, the originally-planned Featherweight co-main event between Ricardo Lamas vs. Diego Sanchez would likely assume headliner status in Monterrey Arena in Monterrey, Nuevo Leon, Mexico.
Brown (20-13) was looking to build on his submission win over Tim Means at UFC 189. Grounding the "Dirty Bird" snapped a two-fight losing streak and the No. 5-ranked 170-pound slugger was eager to compile several big wins to get back into the title hunt.
He'll now have to put those plans temporarily on hold.
To check out the latest UFC Fight Night 78 fight card and rumors click here.