Iarnród Éireann has reassured fans that there will be extra train services to get them to the All-Ireland hurling final later this month, but warned that no tickets will be sold on the day.
Almost all train services have sold out ahead of the match in which Cork will face Tipperary, with both sets of Munster fans using the same route.
The highly anticipated clash is the first ever senior All-Ireland final between the two sides.
Barry Kenny, Corporate Communications Manager with Iarnród Éireann, said that this is not unprecedented.
Speaking on RTÉ's News at One, Mr Kenny said "schedule services" have been sold out since the Munster final due to bookings by "quite a lot of confident supporters from various counties" - some of which he added are "no longer participating".
He said so-called "specials" will be added to the schedule, with "some from Cork and some from Tipperary".
Details of these services, he said, will be "confirmed later this week".
"They will be booked out no matter how many we are able to operate," Mr Kenny conceded, adding that he expects them to sell as fast as the tickets for the Oasis reunion concerts.
He warned those travelling to the capital for the match that they "will not be able to buy tickets on the day".
"So whenever these do go on sale, we would stress to people travelling for the match or for any reason that we won't be selling tickets on the day," he added.
"We would urge anyone who is travelling for the final to book in advance," he said.
Mr Kenny also warned that trains on Saturday afternoon and evening, and others on the Monday morning, will also get heavy bookings.
