COACH Les Kiss has kept faith with Ian Madigan at out-half ahead of Paddy Jackson, who is restricted to the bench, for Ireland's second summer Test.
The Irish struggled in the heat and humidity of Houston to chug their way to an unimpressive, but character-filled, 15-12 defeat of the US Eagles.
They will have to play better than that to unsettle a Canadian collection that have already beaten USA (16-9) in Edmonton last month and Fiji (20-18) in Ottawa and Tonga (36-27) in Ontario this month.
They have all been building blocks to what is their main aim this summer, to reduce an inexperienced Ireland to rubble. There is a world of difference between the standing of Ireland, world ranked eighth, and Canada, world ranked 13th, in terms of their competitive levels.
This is not the Six Nations. It is, however, a standout chance for coming players to announce their candidacy for the November internationals to the super-observant Joe Schmidt.
The Canadians will have to go into battle without Clermont-Auvergne's Jamie Cudmore in front of what is expected to be a summer high of 20,000 spectators.
This does not diminish the fact that this is Ireland-light without most of the first team, which is either on duty in Australia or ruled out by injury. Simon Zebo has been the latest player pulled for The Lions.
Dubliner James Downey will finally make his Ireland debut, coming into the centre for Stuart Olding, while Felix Jones will start at full-back.
Munster flanker Tommy O'Donnell will win just his second cap in a back row with captain Peter O'Mahony and Chris Henry.
Ireland: F Jones; F McFadden, D Cave, J Downey, A Trimble; I Madigan, I Boss; T Court, R Strauss, M Ross, D Tuohy, D Toner, K McLaughlin, T O'Donnell, P O'Mahony (capt).
Canada v Ireland
TG4, tomorrow night, ko 1am