Wresting Moves, Set up before or improvised?

When WWE wresters fight in a ring, do they just say 'bob wins, make the match about 8 mins long' or do they practice exactly what they will do in the ring before hand?|||all of it is set up and practiced thoroughly but every once in a while an accident happens and someone does get hurt|||I have no idea, i think they just set it up before and practice what they will do in the ring|||A lot of people don't believe this, but if you actually go to a fight, they're fighting for real. People think its fake but the guys/women are actually trying, its not rehearsed, but its legit.|||They practice the most important moments and also the rest of the match but some things are improvised otherwise it sometimes would look stupid.|||They practice their moves to make sure everything goes according to plan.|||Listen theres youtube videos on the match, each match is given a certain time period say 8-15 minutes. Theres always a predetermined winner and some of the ending parts are rehearsed however most of it is done through the ref indicating whether or not the match should end|||The first one, they are given the time and winner. From there it is up to the wrestlers involved, they may go out and improvise the whole thing, or they may talk about a few spots in the match before if they want to. They never rehearse the match beforehand, the only match where they did that was "Macho Man" Randy Savage vs. Ricky "The Dragon" Steamboat at Wrestlemania 3. There is no rehearsal. At most they will talk through the major things in the match they want to do and the ending.