I'm kinda on the fence about the punch. It could be considered a sucker punch, but the same time, that's how most fights start. In real life, say you were walking and some guy tripped you, you get up, tell him he's a f***ing idiot, he says the same to you. He comes up and pushes you. You should pretty much be ready for a fist fight at that point. If there was no push or anyting to get it going I'd say it was really dirty, but the slide, the talking, the push, you should be ready to go, even if it is baseball.