Leinster lock James Ryan is ruled out after sustaining a calf injury in training, with no further updates on Jordan Larmour, Paddy McCarthy, Rob Russell, Alex Soroka, or Will Connors.
A run of four unanswered tries either side of half-time saw United Rugby Championship leaders Leinster beat Cardiff 42-24.
Leinster player ratings: Leinster secured a hard-fought victory over a spirited Bath side in the Investec Champions Cup. While their handling and error count left room for improvement
Leinster's injury list has continued to grow after their Investec Champions Cup round one victory over Bristol Bears with Ciaran Frawley now ruled out of Saturday's fixture with ASM Clermont Auvergne.
Leinster head coach Leo Cullen has provided an injury update ahead of Saturday's BKT United Rugby Championship Round 6 match against Emirates Lions at Aviva Stadium.
Olympian Zac Ward is set to start on the wing for Emerging Ireland on Wednesday against the Pumas in Bloemfontein.
Emerging Ireland have been dealt another injury blow with Connacht prop Jordan Duggan being replaced by Leinster's Alex Usanov the day before the squad embark for South Africa.
Leinster flanker James Culhane has been passed fit to team up with Emerging Ireland for their three-match tour in South Africa next month.