Ospreys tonight make their second trip across the Irish Sea in as many weeks, following their 38-14 defeat to Ulster at Kingspan Stadium in Round 1.
That loss ended a five-game winning streak in the competition with the Welshmen narrowly missing out on the third play-off spot in Conference A.
They were boosted during the week by the news that Shaun Venter would be joining from Cheetahs.
The 32-year-old scrum-half will add a wealth of experience, particularly now, while they are depleted due to having 10 players in Japan on international duty.
They lost both centre Cory Allen and lock James King to injury in last weekend's loss in Belfast and will be without both for medium-term spells.
With Bradley Davies called up to the Wales squad last week, where he links up with fellow Ospreys locks Alun-Wyn Davies and Adam Beard, and King (shoulder) now set for a spell on the sideline, they have been hit hard in the second row.
"It's a real stretch on the squad. We're really thin, we're in a position where we have to reinforce to have enough substance to compete," said coach Allen Clarke ahead of their Leinster clash.