The Gunners will head into their clash with the Premier League's bottom club off the back of two successive defeats.
"If you look at their squad there are a lot of big, experienced players," the defender told Arsenal's official website.
"We'll go into the game with maximum focus, because the Norwich match showed that we can't afford to do anything but. I'm glad we have another home game and that there's no time to dwell on the last two results."
Arsenal are currently ninth in the Premier League table with 12 points from eight matches.