1 The Aviva Stadium semi-final between Ulster and Edinburgh will be the sixth tournament match staged there since the redevelopment of Lansdowne Road.
2 Clermont v Leinster will be the second French-Irish last four contest at Stade Chaban Delmas; Munster won 31-25 against Toulouse in Bordeaux in 2000.
3 The 'six from six' jinx has struck again. Munster won all six pool matches but no club who won all six have gone on to lift the trophy.
4 The 2008/09 semi-finals had the greatest combined attendance of 126,420, at Croke Park (Munster v Leinster, 82,208) and the Millennium Stadium (Cardiff v Leicester, 44,212).
5 That Munster v Leinster attendance of 82,208 is the tournament semi-final record.