Heineken Cup champions Leinster prepare for their make-or-break Saturday showdown with Exeter Chiefs at Sandy Park lifted by the prospect of midfield maestro Brian O'Driscoll being fit for the crucial tie.
The triple champions accept only a win - and possibly only a bonus point win at that - will be good enough to keep them in the hunt for quarter-final qualification.
ASM Clermont Auvergne are home and dry as the automatic Pool 5 qualifiers with five from five ahead of their trip to Parc y Scarlets while Joe Schmidt's champions sweat on being one of the two best runners-up.
O'Driscoll experienced some discomfort after rolling his right ankle in the bonus point win against the Scarlets at the RDS which initially is expected to limit his on-field involvement but the management are confident he will be fit for selection by Thursday.
Sean O'Brien was a late withdrawal from the game due to illness, but he is expected to resume full training this week as will Kevin McLaughlin (shoulder).
Ireland hooker Richardt Strauss will be available for selection, while Isa Nacewa successfully came through his comeback game after missing the last few weeks with a forearm injury.
