LOL. How many turned up without tickets and forced their way in? There were people that got in without tickets as they were allowed to walk in, showing a blue flyer that was given out on the street. There was a crush involving supporters, almost entirely with tickets, due to limited turnstiles trying to get thousands of supporters into the stadium. If I remember correctly, I believe the Athens stadium had around 10% of the turnstiles that Anfield or other PL grounds have. But answering your question, I'm sure a minority of supporters will try to celebrate outside the stadium. That I'm sure would be similar if x avoided relegation too though. Hopefully only small enough numbers that stewarding can control and with the help of the police, quickly clear.