Following on from their citing of Adrian Garvey, Leinster find two of their players, Trevor Brennan and Spooner cited by the Welsh club for high tackles on Garvey and Matt Mostyn respectively.
Glasgow number 8 Jon Petrie will not be available for the Leinster game, nor will his fellow internationals, full back Glenn Metcalfe and prop David Hilton. The trio missed Glasgow's quarter-final win against Connacht in Galway last Saturday.
However, Glasgow are expected to name an unchanged side when they announce their side for Friday's Lansdowne Road semi-final today following a press conference at Grangemouth Stadium.
Ulster wing James Topping will miss the semi-final clash with Munster because of a groin strain that could keep him out of action until the New Year.
Munster are certain to be without David Wallace (shoulder) and there are doubts over Peter Stringer (ankle) and John Hayes (shoulder). Stringer missed the game against Llanelli, his replacement Mike Prendergast delivering a performance that earned him the Man of Match..