However, they backed up European victory over La Rochelle with a GUINNESS PRO12 triumph against Treviso last weekend, a late Dries van Schalkwyk try securing the result.
That was a fifth league try for the South African forward this season - only Leinster's Isa Nacewa can match that tally - and will no doubt have a big role to play once more.
Treviso, on the other hand, have lost their last 21 matches in all competitions, though they have claimed seven losing bonus points already in the GUINNESS PRO12.
They also boast the boot of Jayden Hayward, who is just nine points shy of a century for the season - only Cardiff Blues' Rhys Patchell has more.
That is just one of many derby clashes across the weekend, perhaps none more significant than the second leg of the 1872 Cup.
Glasgow Warriors have plenty left to do in their annual contest with Scottish rivals Edinburgh, following a 23-11 defeat at BT Murrayfield on Sunday.
They will need to overturn a 12-point deficit in order to reclaim the cup, while victory for Edinburgh at Scotstoun would secure a season's double over the Warriors for the first time since 2003-04.
In form Leinster are back at the RDS to host a Connacht side that has never won there in eight visits.
Leo Cullen's charges are building a head of steam, victory at Munster last weekend making it five GUINNESS PRO12 wins in a row.
Connacht, meanwhile, lost last time out against Ulster but remain second in the table - three points better off than Leinster - and have gained at least one league point from their last 12 games in the competition.
Munster will look to bounce back at the Kingspan Stadium, where hosts Ulster have not lost in the GUINNESS PRO12 since May 2014.
Anthony Foley's side have lost their last five on the bounce in all competitions - their worst run for more than a decade.
In Wales, the table-topping Scarlets visit Cardiff Blues, hoping to end a run of three straight league defeats.
In Aled Thomas they have a kicker in form - he has bisected the posts with each of his last seven efforts off the tee - but they face a Blues side what has suffered league defeat on home soil just once since last January.
Newport Gwent Dragons have an accomplished kicker of their own - Dorian Jones is the league's most accurate with a success rate of 86.67 per cent - but they are yet to win away this season.
They visit the Ospreys, who have not lost to a fellow Welsh region at the Liberty Stadium since the Dragons came to town way back in October 2010.
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