Wasps welcome Leinster to the Ricoh Arena on Sunday afternoon (KO 3.15) in a position that they would have wanted to avoid at the start of the campaign.
The English Premiership side have failed to win any of their first five games in the Champions Cup this year, drawing one with Bath.
They lie sixth in the Gallagher Premiership with six wins and six losses from their 12 games to date, most recently an impressive 27-16 home victory over Northampton.
They are sweating on injuries to captain Joe Launchbury and recently-recalled Welsh international Thomas Young, son of Wasps director of rugby, Dai.
On a more positive level, Joe Simpson and James Gaskell, both missing since November, could have some involvement on Sunday.
In the recruitment field, Wasps started the week with the news that Willie le Roux and Nathan Hughes are moving on at the end of the season.
Coming in the other direction is Malakai Fekitoa.
After two seasons with Toulon, the All Black World Cup winner will link up with former team-mate Lima Sopoaga at the Ricoh Arena.