The Millennium Stadium and Cardiff Blues are on track to smash the current Welsh record of 27,114 for a home Heineken Cup match when the Blues play Toulouse at the Stadium on Saturday (3.30pm).
More than 29,000 tickets have already been sold ahead of this weekend's Heineken Cup quarter-final clash with triple champions Toulouse and tickets will be available on match day from the marquee in front of Gate 3 of the Millennium Stadium.
It was the Blues who set the 27,114 mark in their Round 2 meeting with Gloucester Rugby at the home of Welsh Rugby earlier this season.
More than 91,000 tickets have already been sold ahead of this weekend's Heineken Cup quarter-finals.
Thomond Park - where reigning champions Munster take on the Ospreys - is already a 26,000 sell-out, tickets sold for the Walkers Stadium showdown between two former Heineken Cup winners, Leicester Tigers and Bath Rugby, have topped the 24,000 mark while Harlequins are just a couple of hundred short of meeting the Twickenham Stoop capacity of 12,638 for the visit of Leinster on Sunday.