Diego Simeone will face ex club Inter as an opponent this Summer, albeit in a friendly match.
According to Finnish magazine ‘Keskisuomalainen’, Inter will face Atletico Madrid in a high profile friendly to be played in the Finnish capital, Helsinki on 8 August 2015.
The two clubs have agreed to land on Finnish soil to continue their preparations for the start of their prospective Championships.
Source: FcInterNews.it

Does anyone know what time the match is scheduled for?
BOOOM!!! Finally I’m able to see my team live! Forza Inter!
Great news, can finally see my favourite team playing. Already heard this from many Finnish sources. Now just waiting for tickets to come available. FORZA INTER!
Awesome! Love the pre-games but they don’t really reflect our quality