Coach Declan Kidney is able to name a very strong squad, with the likes of O'Driscoll, Brian O'Meara, Shane Byrne and Gordon D'Arcy all sure to figure heavily.
But there is no room for David McAllister and John McWeeney in the Heineken Cup squad. The two players have been prominent for Leinster so far this season, but with the arrival of David Holwell from Wellington (in McAllister's case) and the return of O'Driscoll, D'Arcy, Horgan and Dempsey, the players were left out at the final cut.
Brian Blaney, David Blaney, Emmett Byrne, Shane Byrne, Reggie Corrigan (Captain), Peter Coyle, Victor Costello, Leo Cullen, Des Dillon, Ben Gissing, Gavin Hickie, Shane Jennings, John Lyne, Aidan McCullen, Eric Miller, Ricky Nebbett, Antony O'Donnell, Malcolm O'Kelly, Ciaran Potts, Niall Ronan
Gary Brown, Felipe Contepomi, Gordon D'Arcy, Girvan Dempsey, Guy Easterby, Denis Hickie, David Holwell, Shane Horgan, Kieran Lewis, Brian O'Driscoll, Brian O'Meara, Brian O'Riordan, David Quinlan, Christian Warner