Coach Joe Schmidt is determined to finish his Leinster career with a league and Amlin Challenge Cup double.
Leinster clinched the Amlin title with a clinical 34-13 victory over Stade Francais in Dublin to achieve the unique feat of holding both European titles at the same time.
They will lose their status of Heineken Cup champions on Sunday but having become the first team from Ireland to win the Amlin title, Schmidt - who will become the new Ireland coach after next week's RaboDirect PRO12 final - wants the double.
"It's a trophy we have wanted for the last two months," said Schmidt. "For 20-odd hours we are both the Heineken Cup and Amlin Cup holders and that is a special thing.
"This is our third European trophy in three years and if you had said that at the start of the season I would have taken it with both hands.
"We have one match to play so no matter what happens tonight we have to turn around and try and do our best next Saturday.
"I am a reasonably simple person, I just want to focus on next Saturday now. It is something that has eluded us in the last two seasons, we have won Europe and lost the Celtic League.
"To win the PRO12 would be massive. We will be looking to double up if we can."
Jamie Heaslip captained Leinster to victory but he handed the trophy-lifting honours to Jonny Sexton, who is leaving for Racing Metro in the summer, and retiring wing Isa Nacewa.
"It was a no-brainer to be honest," Heaslip said.
"Those two guys had such an influence on the game and such an influence on the squad."
Stade captain Sergio Parisse was magnificent for his team, but the visitors, despite dominating possession, could only score one try.
"Leinster analysed our defence really well. They scored their first three tries from first or second phases. They played really well," Parisse said.
"I hope this defeat and disappointment will help us grow as a team and give us experience for the future."