Races?

[GKZhukov]

I keep hearing mention of different races on the guides within this forum, but I don't see races mentioned in-game, or options or attributes for different races on gladiators.

Was this an old feature that's been removed or am I missing something?

Edit: Just realised there is a selection on my overview screen where I can see the bonuses and penalties and change it for 65 trophies. am I to take it that on the slave market all slaves are human then, and the only way to change race is the 65 trophy route?