The Black Cats take on Alex Neill’s side on Saturday in the early kick off, in a game that is likely to be a determining factor in this season’s relegation scrap.
Sunderland currently sit 18th in the table and four points from safety, with the Canaries occupying that final safe spot in the table.
That means there are huge stakes involved in Saturday’s game, and Cattermole has urged his teammates to focus on themselves to secure the win they need.
“It’s a big game and there is no hiding away from what it means to both clubs,” he told safc.com.
“We have to hold our nerve and put in a strong performance; it might not be pretty but if we can’t win the game we definitely can’t lose it.”
“I think you can get carried away looking at what other people are doing and I think you should only concentrate on your own team.”
If Sunderland are to secure a crucial victory, they will need to find a way to get Jermain Defoe among the goals once again.
The striker is their top goalscorer this season but has struggled in recent weeks, causing his team to also struggle to find the back of the net.
That has seen them fail to pick up the wins they desperately need, despite positive performances in general, and getting him back in scoring mood is likely to be key.