The midfielder joined the Gunners as a 16-year-old but only made three league appearances, and despite still being a Gunners fan he has admitted that he would love to see them drop to the relegation zone.
"For this one game I'll be more than happy to make that happen and see them struggle," Larsson said.
"The fear factor has gone a little but if they do put in a good performance then you will be in for a hell of a tough day.
"Since my time there I have always followed them."
The Swedish international joined the Black Cats on a free transfer from Birmingham City in June this year.