London Irish expect to set a record attendance for the club at this Sunday's (16th March 2003) Zurich Premiership match against NEC Harlequins, kick-off 2.30pm.
Advance ticket sales are already in excess of 15,000 and the East and West Stands at the Madejski Stadium are sold out.
The club is appealing to those fans intending to come to the game but have not yet booked their tickets, to do so via the London Irish ticket hotline (0118 968 1000) as soon as possible.
Because of the early kick-off at 2.30pm and the large numbers involved, London Irish Commercial Director, Pat Coyne, is encouraging supporters of both teams to arrive at the stadium as early as possible.
"Given that it is the eve of Saint Patrick's Day, we have a full programme of pre and post-match entertainment to keep supporters busy. We hope they will all enter into the spirit of this special weekend and have an enjoyable afternoon and evening."