Tickets for today's European Cup quarter-final clash between Munster and Biarritz are being sold for over five times their face value.
Touts are taking advantage of the scant allocation of tickets to fans to make huge profits by selling their tickets on.
Many desperate Munster fans, who weren't lucky enough to get their hands on one of the 13,300 sold during the week, have had to turn to the touts to gain entry to the big match at Thomond Park.
£30 tickets are changing hands for up to £150.
Munster branch executive Garret FitzGerald defended their decision not to move the game to Lansdowne Road and a 50,000 capacity.
"Much as we wanted to accommodate our fans, the first priority is to win the game and reach the semi-finals. We felt that we had a better chance of beating Biarritz in Limerick than in Dublin," he said.