The final of France's top rugby union league is usually held in the Stade de France in Paris but will this year take place at Barcelona's 98,000-capacity venue as the French national stadium is being used for the European football championships.
It will be the first rugby match to take place at the Nou Camp and the expected 98,000 crowd will eclipse the previous record attendance of 84,068, for an English Premiership match between Saracens and Harlequins at Wembley last March.
While organisers said the event was a sell-out, a number of seats have been held back for the fans of the two teams who reach the final.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
The Top 14 has six weeks remaining of the regular season before the top six teams take part in the playoffs, which begin on June 11.
(Reporting by Richard Martin; Editing by Toby Davis)
