Wicklow man Leo Cullen made history today as the first rugby player to win the European Champions Cup as both manager and player.
Leinster had to dig deep against a dogged Racing 92.
The sides were level 6-6 at the break.
Captain Isa Nacewa sealed victory with a penalty as only 90 seconds remained on the clock.
Racing had the chance to equalise from a drop goal at the death but Talès missed his shot and Leinster took the title.
Final score Leinster 15 Racing 12