K-Flow

If you look closely you can see a small quantity of urine escape out of the bottom of Florian's shorts. What people don't know is fighters are like astronauts or race car drivers, they have all that gear on and they have been strapped in for hours with no bathroom, so when the need arises they just have to go. That or BJ hit him with some kind of high level Ju-jitsu move that made him pee.