Leicester Tigers' allocation of 7,500 tickets for the Aviva Premiership final against Northampton Saints have already sold out.
The club have requested more and are waiting on an answer from tournament organisers.
The sales reflect the huge demand to see the league's first all-East Midlands final, which is guaranteed to be a sell-out before kick-off on May 25.
Tickets went on sale after the final whistle of Leicester's 33-16 win over Harlequins on Saturday and they were all snapped up by season ticket holders and members before they even reached general sale.
Some tickets are still available through the Ticketmaster website, see below.
Eyebrows are often raised at the limited allocation of tickets per club for the league's showpiece occasion.
But, Premiership Rugby put tickets on sale months before the final in a bid to make sure the event has the best possible chance of selling out and attracting supporters of all 12 Premiership clubs.
A spokesman for Premiership rugby said: "That allocation has remained the same over the past five years and, while demand has been strong, the demand from the clubs that have reached the final has not been at a level where we need to increase those allocations."
For ticket availability, see: