A win for Leinster would keep them at the top, but they would also then have to rely on the Borders beating Ospreys. A bonus point win for Leisnter would see them crowned champions.
In the backs Marc Stcherbina replaces the injured Tom Shanklin, who suffered a minor back injury against the Scarlets. Nicky Robinson comes in at outside half.
In the forwards Gareth Williams, Robert Sidoli and Mark Lewis also come in while Robin Sowden-Taylor replaces Martyn Williams who suffered bruising to his foot after Saturday's match.
Team: Ben Blair, Rhys Williams, Jamie Robinson, Marc Stcherbina, Chris Czekaj, Nick Robinson, Mike Phillips, Xavier Rush (C), Robin Sowden Taylor, Mark Lewis, Robert Sidoli, Deiniol Jones, Gary Powell, Gareth Williams, Gethin Jenkins
Replacements: Scott Roberts, T. Rhys Thomas, Scott Morgan, Rhys Shellard, Wayne Evans, Nick Macleod, Tom James
CARDIFF BLUES V LEINSTER
Friday 11 May 7.10pm kick off
Ticket Office 029 2030 2030