Arsenal captain Thomas Vermaelen has admitted that winning against struggling Queens Park Rangers at the Emirates on Saturday will be tough.
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.
"Julio Cesar and Esteban Granero were good signings, as well as Ji-Sung Park. Their league position isn't great, but with players of that quality you can see them climbing the table.
"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.