In most high level sports, being clean is the exception, not the rule imo.
Musashi -Tom Lawler - Me
lol musashi!
Who I think is clean
Mark hunt
BJ penn
Diaz bros
Werdum
Edgar
Machida
Moussasi
Mighty Mouse
DC
Mitrione
Bisping
Condit
Brown
Cowboy
Conor
Cruz
Creepy
"Shocking" Fighters I wouldn't bat an eye if they got popped
Cain
Faber
Mendes
Jacare
Barao
Hendricks
Kennedy
Dos Anjos
Jds
Lawler 
So how is this situation different than every other pro sport?
Look...this a "sport" where even the fucking owners and promoters are juiced to the gills...Dana and the one Fertitta brother who looks like a gorilla.
Bruce Buffer probably isn't even clean. Neither are the ring girls most likely.
So to sum up....the answer is no.
No one is clean. Least of all the fighters...
Musashi -Tom Lawler - Me
PEP's. Performance Enhancing Procedure.
Musashi -Winston Wolf - this sport is becoming a roided joke
Right.. "becoming".
Bring back the days of Pride, where fighters were clean and there was no corruption!
Agreed and VU, Musashi. Something else comes to mind. Was there any drug testing at all in the SEG and early Zuffa era of the UFC?
Lorenzo Fertitta.
I am washed my cock two hours ago 
whoabro - So how is this situation different than every other pro sport?
It's not different except for one absolutely critical detail: Unlike baseball, basketball, football, etc. MMA involves two people punching each other in the head.
So if I'm a fighter I probably should be thinking what happens if I get serious head trauma from a fight, retire and have problems the rest of my life because the guy that KOed me was juiced to the gills?
"So if I'm a fighter I probably should be thinking what happens if I get serious head trauma from a fight, retire and have problems the rest of my life because the guy that KOed me was juiced to the gills?"
Should you only sign to fight weaklings? Do you have any reason to think you will take more serious trauma from a punch from someone who had used PEDs than another guy who is just naturally a hard hitter? Guys who get stronger through improved strength programs don't typically seem to develop noticeably more KO power; do you have a reason to think that guys who get stronger because of PEDs would?
P.S. they can't be "juiced to the gills" since that implies the stuff is still in their system at fight time.
No
rev
Clean is a subjective term anyway. As we progress in tech and medicine it's only going to make the Grey area larger. The truth is they'll never be able to regulate a "clean sport".
Tom Lawlor -No, you're quite clearly Filthy.
Me.
orcus - "So if I'm a fighter I probably should be thinking what happens if I get serious head trauma from a fight, retire and have problems the rest of my life because the guy that KOed me was juiced to the gills?"
Should you only sign to fight weaklings? Do you have any reason to think you will take more serious trauma from a punch from someone who had used PEDs than another guy who is just naturally a hard hitter? Guys who get stronger through improved strength programs don't typically seem to develop noticeably more KO power; do you have a reason to think that guys who get stronger because of PEDs would?
P.S. they can't be "juiced to the gills" since that implies the stuff is still in their system at fight time.
The "punch to the head" was more or less a figure of speech.
Maybe a better way to put it is that fighters are juicing for an advantage (or else they wouldn't bother). Whether that advantage is they can train longer/harder, gain more strength/speed/power, can punch/kick harder, whatever, it is hurting their opponents - if not noticeably so physically clearly it is in their wallet via losses.
And whether the stuff is in their system or not fight time, it was when they were training so ... yes, it may have helped them hit harder (see the last paragraph).
Am I the only one who doesn't care if fighters are using?