Leinster Head Coach Leo Cullen is confident Sean O’ Brien will be fit for the Six Nations.
The back row remains out for tomorrows Champions cup game away to Castres due to a calf injury.
Cian Healy and Richardt Strauss come into the front row replacing Jack McGrath and James Tracy while Ross Molony replaces the suspended Hayden Triggs in the second row.
The backs remain unchanged.
A win for Leinster will ensure a home quarter final.