According to a Jan. 15 report from Bloody Elbow, Olympic silver medalist Yoel Romero (7-1) may have soiled himself during his fight against hard-hitting knockout artist Derek Brunson (11-3) at UFC Fight Night 35 in Duluth, Georgia.
Romero, 36, bounced back from an early deficit on the judge's scorecards, to score a brilliant knockout of Brunson in the third round of their tilt.
However, it was the strange stain on the back of his shorts that stole the spotlight when it came to social media.
MMA Fighting reporter Ariel Helwani was among the first to report on the stain on Romero's shorts.
Unfortunately for UFC fans, Romero's accident wasn't the first time fans got a bit more than they bargained for.
At Ultimate Fight Night 3 in 2006, Tim Sylvia famously soiled himself during his bout against Assuerio Silva.
Flatulence and diarrhea are fairly common among distance runners, but it's rare for cage fighters to lose control of their bowels during a match.
Aussie MMA star Bec Hyatt says it's far more common for fighters to lose control of their bladders. However, such instances typically only occur after a fighter goes unconcious.
"I've seen some fighters peeing in their pants after getting knocked out," Hyatt told Long Island MMA Examiner Eric Holden in an exclusive interview. "That's probably my biggest fear - peeing in my pants.
"I've seen some people in Australia that have been knocked out and woken up in a puddle, so yeah, that's probably what I'm scared of the most."