To begin with, the Allsvenskan side have an English manager in Graham Potter, who has done what can only be described as a fantastic job with them.
The former Birmingham City full-back took over at the club in 2010, when they were in the fourth tier of Swedish football, taking them through the leagues and into Europe.
It surely won’t be too long before clubs in his home country start looking at him to fill managerial vacancies over here.
But Arsenal won’t be worried about that, they’ll want to know more about the team they are facing.
Watch the video above to find out about Östersunds FK and their amazing rise.