Do You Think Rocky Apollo Was the Greatest Bromance?

I watched this movie for 40 years. Where was the second fight? I don't know whether it was in Vegas, but then they decided they didn't want to. It would have been huge though, right? Probably like twice the action from the first fight because the first fight we don't know who Mr. T is. It's just Rocky's going to beat up on another guy. Yeah. Absolutely.