Saints may have won back-to-back games to put themselves well into contention for a place in the top four going into the LV= Cup break, but Waller acknowledges that the Exiles will be buoyed by last weekend's win over London Wasps and that they cannot be taken lightly.
"We've got a bit of momentum at the moment and hopefully we can get a win to keep that going," the prop told SaintsTV. "Back in September we weren't right mentally when we went to Reading and they punished us. We know that we can't have a single minute off in the Aviva Premiership; every team's a good team and has the capability to beat you.
"We can't switch off and we've been preparing for London Irish in the same way we do for every game. They're a good team with good forwards and some exciting backs, and now the ground's firming up that's when they could come into play.
"We're going to have to go into this game focused and not look at the table in terms of where they are. We need to switch on and be in the same frame of mind we were last week."
Tickets remain available for tomorrow's game (which is not being televised live), with prices starting at £28 for adults and £18 for juniors and concessions. Order now by calling 01604 581000 or by CLICKING HERE and following the straightforward instructions.
NORTHAMPTON SAINTS TEAM TO PLAY LONDON IRISH
Aviva Premiership Rugby Round 17
Franklin's Gardens
Saturday, March 2nd, 2013
Kick off 3:00pm
15 Ben FODEN
14 James WILSON
13 George PISI
12 Tom MAY
11 Jamie ELLIOTT
10 Stephen MYLER
9 Lee DICKSON
1 Soane TONGA'UIHA
2 Dylan HARTLEY (capt)
3 Tom MERCEY
4 Courtney LAWES
5 Christian DAY
6 Samu MANOA
8 GJ VAN VELZE
Replacements
16 Ross MCMILLAN
17 Alex WALLER
18 Brian MUJATI
19 Mark SORENSON
20 Ben NUTLEY
21 Martin ROBERTS
22 Ryan LAMB
