The Gunners head to Old Trafford looking to return to winning ways after the disappointment of their 2-0 loss at the hands of Barcelona in the Champions League on Tuesday night.
Arsenal were 3-0 winners over United when the two sides last met at Emirates Stadium back in October.
The north London side are currently third in the Premier League table and two points behind leaders Leicester City as they look to win the top-flight title for the first time since their famous unbeaten triumph in 2004.
And Chambers has talked up the importance of Sunday’s game as the Premier League title race hots up.
Chambers posted the picture above on his personal Instagram account on Saturday afternoon and wrote: “Up to Manchester tomorrow! Every game is must win #COYG”
Arsenal beat Leicester 2-1 at Emirates Stadium earlier this month thanks to Danny Welbeck’s late goal against the Foxes.
MORE: The latest football news