Leinster usually play their home games at the Aviva Stadium, but it has been ruled out as it prepares for the Europa League Final in late-May
Croke Park will host Leinster's Champions Cup Semi-Final if the province beats La Rochelle this weekend.
Organisers EPCR has confirmed the Drumcondra venue for the match, should Leinster win this Saturday's Quarter Final.
It'll be the first time GAA HQ will hold a professional club rugby match since the Leinster-Munster clash in 2009.
Leinster usually play their home games at the Aviva Stadium, but it has been ruled out as it prepares for the Europa League Final in late-May.
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