re: Who wins a street fight between a navy seal and a pro fighter

This ain't an action movie. I bet 99% of the special forces who have seen action/gone on missions have never engaged in any hand-to-hand combat.

So my answer: a real-life seal would lose. A "movie/tv seal" who is on a mission with Tom Cruise or Jason Statham would take out 10 pro fighters in a restaurant while waiting on their dinner entree to arrive.