Tries from Shane Jennings and Zane Kirchner have helped Leinster to a 21 - 11 victory over Connacht.
The Blues were defending a three point lead in the final stages when Kirchner made sure of the win.
Jennings got the opening try of the game for the home side, while Jimmy Gopperth also kicked a penalty to make it 8 - 0.
Gopperth and Connacht's Jack Carty exchanged six points each as the match wore on to leave the points at 14 - 6 heading into the final 10 minutes.
But Connacht made it a three point game when George Naoupu scored a 73rd minute try.
However, a Zane Kirchner try two minutes from time gave the Blues victory.
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