What’s that smell?
You know those beautiful flowing robes that the Romans wore? There’s a good chance they smelled like piss. Urine was frequently used as a detergent- and professional washers called fullers were the ones who provided the yellow liquid.
Many were also not toned with a six pack like in some movies for precisely that reason. A nice bit of fat gives your opponent something to cut without a kill.
Die in the games*
And obviously in the the centuries of gladiatorial games there have been some exceptions and circumstances. But overall, I know what I'm talking about.