Advanced sales for Saturday's key Pool 2 contest - the 996th Pool match played - make it set to be the fourth best attended Heineken Cup Pool match in the 16 seasons of the tournament.
Leinster have already been involved in a Pool match this season that attracted almost 46,000 fans to Wembley Stadium to see their Round 2 clash with Saracens and they could end up with around 90,000 going through the turnstiles at Wembley and the Aviva to see the Irish province in just two of their group stage matches in the same season.
TOP HEINEKEN CUP POOL MATCH ATTENDANCES
76,569 - STADE FRANÇAIS PARIS v Harlequins - Rd 3 2008/09 (Stade de France)
45,892 - SARACENS v Leinster - Rd 2 2010/11 (Wembley)
44,112 - STADE FRANÇAIS PARIS v Sale Sharks - Rd 3 2006/07 (Parc des Princes)
37,323 - LONDON IRISH v Leinster - Rd 6 2009/10 (Twickenham)