Three points adrift of this evening’s opponents and with a trip to Vicarage Road to follow leaves no margin for error for Munster this evening when they play Saracens at what will be a packed Thomond Park Stadium(6pm).
And not for the first time in the history of this competition Munster find themselves with their backs against the wall. And not for the first time it's against an English side who arrive with a massive reputation and a fully laden cargo of intent.
But in many ways this game has resonances with the time Munster first tackled sarries back in 1999. The English club then had the marquee names such as Thierry Lacrox, Roberto Grau, Scott Murray, led by Francois Pieenar with the equally brilliant Richard Hill alongside him in the back row.
The South African influence has grown to an extraordinary extent thanks to the deep pockets of the Londonclub and its that high veldt spine that makes them such a potent outfit, so potent in fact that they believe they can afford to leave John Smit on the bench and then drop English international David Strettle just hours after naming him on the starting XV.
So now the Munster youngsters of '99 are the veterans of today's side and the likes of Ronan O'Gara and Donncha O'Callaghan must do for the Zebos, Kilcoynes et al what the Claw and Gaillimh did for them back in the day.
It's set to be a cracker and a decisive point in deciding the destiny of either side and if Munster are in touch as they turn into the straight, then we could see the English favourites in a degree of bother.
Munster: F Jones; D Howlett capt, K Earls, J Downey, S Zebo; R O'Gara, C Murray; D Kilcoyne, M Sherry, BJ Botha; D O'Callaghan, D Ryan; Dave O'Callaghan, P O'Mahony, J Coughlan. Replacements: D Varley, W du Preez, S Archer, B Holland, P Butler, D Williams, I Keatley, C Laulala.
Saracens: A Goode; C Ashton, O Farrell, B Barritt, C Wyles; C Hodgson, N de Kock; R Gill, S Brits, M Stevens; S Borthwick capt, M Botha; K Brown, W Fraser, Ernst Joubert. Replacements: John Smit, Mako Vunipola, Petrus du Plessis, George Kruis, Andy Saull, Richard Wigglesworth, Joel Tomkins, David Strettle.
Referee: Pascal Gauzere (France)