England lock Geoff Parling admits his side would be looking inwardly and not at rivals Ireland when they tackle the Six Nations champions on Saturday.
Parling, who was recently named in the 31-man squad for the World Cup, returns to England's starting line-up for what is their final warm-up fixture.
And on the back of a 25-20 loss to France in Paris, he's excited to be back.
"Now that we're in September it feels like the start of the World Cup in a way," Parling told England Rugby ahead of this week's Twickenham showdown.
"We know that we underperformed last time out. We've got to do a lot of things better because it's going to be a big battle at the weekend.
"As we know, Ireland are a quality team with experienced internationals throughout.
"You have to pay respect to any team you play, especially someone like that, but the main focus has got to be on us and what we do."
Parling continued by saying the squad would be taking each game at a time as they look to win a World Cup on home soil.
"What comes after this is massive so we know how important every single game is. You can sense that everyone is knuckling down and getting excited about Saturday," he added.
"Everyone wants to be in the starting 15. Nobody will be happy now even with a bench place. But it's all about how the team does. If you play and the team does well, that's good for you personally as well.
"Everyone is contributing. The guys not involved this weekend are contributing a great deal in training. We all focus on Ireland and then we group and go again to Fiji and on from there."