The Irish side have won three European Rugby Champions Cups – one less than Toulouse – and one Challenge Cup in their history.
Racing 92 have yet to lift Europe’s top rugby prize, with the closest they have come being a 21-9 final defeat to Saracens in Lyon two years ago.
Like Ireland’s grand slam heroes in the Six Nations, Leinster have won every single match they have played in this seasons Champions Cup.
The European Rugby Champions Cup final will take place on Saturday, May 12.
Rugby is breaking new ground as this year’s final is played at Athletic Bilbao’s San Mames Stadium in Spain.
The occasion marks the first time Europe’s biggest club rugby match has been played outside the British Isles and France.