Do you know the largest margin of victory at a Heineken Cup semi-final? What about the biggest crowd to watch a final four knockout match? Learn all this and more, by clicking inside this story...
• Cardiff Blues are appearing in their first semi-final as a region - although Cardiff RFC contested the first Heineken Cup final back in January, 1996, and also played in the 1996/97 semi-finals.
• Munster are appearing in their eighth Heineken Cup semi-final while Leicester Tigers are in the last four for the sixth time and Leinster the fourth occasion.
• Both Croke Park and the Millennium Stadium are new Heineken Cup semi-final venues. However, while the Millennium Stadium has staged three Heineken Cup finals, this will be the first tournament match at Croke Park.
• Three Munster players - Ronan O'Gara, John Hayes and Donncha O'Callaghan - have appeared in a record seven semi-finals.
• The 2003 / 2004 semi-finals had the greatest combined attendance of 82,500 when the ties were played at Lansdowne Road (Munster v London Wasps, 48,500) and at Stade Chaban-Delmas in Bordeaux (Toulouse v Biarritz Olympique, 34,000).
• That Munster v London Wasps attendance is the tournament record for a semi-final but both Croke Park (82,000) and the Millennium Stadium (74,500) have greater capacities.
• Former Scottish referee Jim Fleming - now an ERC Board member - controlled a record four Heineken Cup semi-finals. Alan Lewis, Alain Rolland (both Ireland) and Chris White (England) have each refereed three tournament semi-finals.
• The only semi-final requiring extra time was the 1998 all-French clash between Toulouse and Brive. Toulouse lost that one on a 2-1 try count.
• The 26 Heineken Cup semi-finals have been watched by 675,701 fans - an average attendance of 25,989.
• The highest score in a semi-final has been the 37 points scored by Leicester Tigers against Toulouse in 1997 and the 37 points scored by London Wasps against Munster in 2004.
• The biggest winning margin has been 27 points, when Toulouse beat Swansea 30- 3 in 1996.
• Two clubs have scored five tries in a semi-final, Leicester Tigers against Toulouse (1997) and Wasps against Munster (2004).
• Only one of the 26 semi-finals has failed to produce a try - Biarritz Olympique's 18- 9 win over Bath Rugby in San Sebastian in 2006.
As part of the build-up to next month's Cardiff 2014 Heineken Cup and Amlin Challenge Cup finals weekend, ERC has joined forces with the WRU, Cardiff Blues and adidas to develop an annual grassroots community rugby programme targeting young players.
The Ulster Rugby full back, Jared Payne (No 15), has been suspended for two (2) weeks following an independent Disciplinary Hearing in Dublin arising from the Heineken Cup quarter-final match against Saracens at Ravenhill Stadium on Saturday, 5 April.