Leinster take on Harlequins at the Aviva Stadium.
Jonathan Sexton plays his first match since April later this evening.
He's been named as captain for Leinster's pre-season friendly with Harlequins.
Sexton hasn't played since sustaining a head injury in the Heineken Champions Cup quarter-final win over Exeter.
Kick-off at the Aviva Stadium is at 7.

World Cup doubt over Josh Cullen after ACL injury
New Years Eve Sports Update
Ulster Back-Rower Juarno Augustus Out For A Number Of Weeks Due To An Ankle Injury
Tuesday Morning Sports Update
Lossiemouth Wins Today's Feature At Leopardstown's December Hurdle
Ciarán Frawley Signs Two-Year Deal With Connacht
Racing Action Comes To A Close At Leopardstown Christmas Festival Today
Monday Morning Sports Update