Shane Jennings and Jack Conan return fro Leinster
Leinster coach Matt O'Connor will have Shane Jennings (below, neck), Ben Marshall (ankle) and Jack Conan (ankle) fit for The Scarlets on Saturday.
Conan was withdrawn as a precaution late into preparations against The Ospreys last Friday.
The province could well have Luke Fitzgerald, the 25th man for Ireland on Sunday, as well as the front row of Cian Healy, Sean Cronin and Marty Moore.
There could even be an opening for half-backs Eoin Reddan and Ian Madigan to add their weight to the argument.
Connacht's All Black Mils Muliaina has been cleared to play against Cardiff on Friday night.
The Western Province has re-established a six-point buffer back to The Scarlets to hold an automatic Champions Cup qualification place with full-back Daragh Leader and number eight Eoghan Masterson in the frame for selection too.