Really? Details please?
If there are no "foul tactics", it is simply sparring.
I am sure an experisence wrestler (not just greco roman, I mean catch as catch can or BJJ in addition to G-R), could be a skilled adversery, but don't buy into the myth. It's like karate in the 60's, tae kwon do in the 70's , tai chi in the 80's, BJJ in the 90's.
I am sure if me and a wrestler and I trained NHB, we would both be exhausted and battered. And it would be fun. I choose not to fight people otuside of training. I don't need to. I don't pick fights, I don't get into situations and some people whoa re all talk can be met by confidence and showing them up for asses.
Wrestling, like kick punch karate, boxing or BJJ is limited to one range. And usually no self defense or weapons.