Rob Kearney is hoping to earn a start for Ireland for the second week in a row when the Irish clash against Romania on Wednesday.
While coach Joe Schmidt revealed that none of his charges are injured following the 50-7 drubbing of Canada in Cardiff, Kearney believes a few guys may be rested.
Kearney is coming off a knee injury himself, but hopes to get another start on Wednesday in order to gain back some match sharpness.
"I haven't seen the full medical report yet but there will be a few guys who maybe won't be fit for this weekend, or might be rested based on a couple of niggles," the 29-year-old told Sky Sports.
"It's not like the Six Nations or November Tests when you have an unlimited number of people to choose from, so some people will be asked to double up again, and when you're asked to double up at a World Cup, you're more than happy.”
The full-back added that he expects to see more kicking of the ball as the Rugby World Cup goes on.
"As this tournament goes on and teams get more evenly matched and the margins are smaller, you'll see a lot more aerial contesting and kicking of ball,” continued the Leinster stalwart.
"That's a tactic teams will use when the stakes are higher."