Winning will be the only item on Wasps' agenda when they tackle fellow Heineken Cup heavyweights Munster in Limerick tomorrow.
Although a draw or losing bonus point could be enough to secure the reigning European champions a quarter-final place, victory at Thomond Park would
guarantee top spot in Pool Five and a home tie.
Only Leicester have previously stormed Munster's imposing Limerick fortress in Heineken Cup combat, winning 13-6 last season.
But Wasps are good enough to emulate that feat, which would keep alive hopes of matching Leicester's achievement in 2002 when Tigers retained the Heineken
Cup.
Wasps rugby director Ian McGeechan said: ``It is a massive game, but this is what Heineken Cup rugby is all about.
``It has been a tough group to play in, but I like to think we have done ourselves justice so far, and we need to do ourselves justice on Saturday.
``When you are playing against any good side it is tactically that you know you have to get it right. We have to look at our game so we put it out there and back ourselves to do it.
``That is the way the Heineken Cup has been this season - produce one result and then get on the next week and produce another.
``We know we have got to win to guarantee going through. We have got to win, and that is the way we play anyway.''
London Irish know a bonus point win against Pool One hosts Treviso tomorrow will guarantee a Heineken Cup quarter-final debut in April - and on home soil at the Madejski Stadium.
Only Saracens have scored more tries and more points than Irish during this season's tournament, and the Exiles are confidently expected to continue their
free-scoring ways against a Treviso side already eliminated.
Irish though, are also aware that Treviso's previous Heineken Cup scalps on home soil since 1998 include Wasps, Bath and Harlequins.
Coach Toby Booth said: ``Being in control of the group is really important to us.
``But we know the Treviso players are tough men who really enjoy the physical aspects, so you have to keep on top of those aspects or you will come second.
``Getting to the quarter-finals is the most important thing for us, and being at home would be an added advantage. We will do our utmost to make sure it happens.''
Saracens can complete an impressive march through the pool stage tonight by securing a home quarter-final as top seeds.
But the Guinness Premiership club, buoyant after inflicting a record 45-16 Heineken Cup defeat on Biarritz last weekend, have been warned the hard work is not over.
Saracens head to Firhill, needing one point against Pool Four rivals Glasgow in their quest for a prized last-eight place.
A bonus point success would see Saracens mark their first quarter-final appearance as the number one-ranked team.
Glasgow though, could still pip them - and possibly inflict a knockout blow to Saracens' entire European campaign - by registering a bonus point success themselves and ensuring their opponents leave Scotland empty-handed.
Saracens rugby director Alan Gaffney has named an unchanged side, and he accepts the trip north poses a considerable degree of difficulty.
He said: ``This will be our fifth meeting with Glasgow in just over a year, so we've got to know each other pretty well.
``One of those games was a draw and while we have won the other three matches, there has never been more than a score in it, so we are under no illusions as to how difficult the game will be.
``We are not in the quarter-finals yet by any stretch of the imagination. There is work still to be done.''
Leicester, European champions in 2001 and 2002, have nothing other than wounded pride to heal when they tackle Pool Six opponents Leinster at Welford Road tomorrow.
Successive away defeats against Leinster, Toulouse and Edinburgh underpinned an early exit, and Toulouse will wrap up the group if they make home advantage count against Edinburgh tomorrow.