Ireland hooker Ronan Kelleher will be assessed for selection ahead of Leinster's Investec Champions Cup last-16 tie with Harlequins at Croke Park.
Kelleher, 27, has been sidelined with a neck injury and will step up his rehabilitation ahead of the last-16 tie.
Leinster qualified for the knockout stages as the seed with four victories from the Pool stages.
They were pipped to the top spot by Bordeaux, who collected more bonus points and face Ulster on Sunday.
Harlequins were seeded 15th of the 16 teams to qualify for the knockout stages with two victories from their four matches.
Leinster back row Alex Soroka will be assessed as he works through return to play protocols after a concussion, but Will Connors is out after injuring his shoulder in Saturday's narrow win over the Sharks in South Africa.
Jordan Larmour, Paddy McCarthy, Rob Russell and James Culhane are still unavailable for selection.
