AC Milan striker Giampaolo Pazzini has moved in the opposite direction as part of the deal, which involves an undisclosed fee going to the Rossoneri.
A statement on Inter's official website read: "The nerazzurri have signed the Bari-born striker on a permanent deal from AC Milan.
"He has signed a two-year contract which runs until June 2014."
The Italy international missed a large part of last season after undergoing emergency heart surgery having suffered a stroke in October.
The Nike Hypervenom is the latest cleat silo from Nike. It will change your game and is worn by the game's top players.
Support the USA national team with an official 2013 Centennial soccer jersey from Nike. Its Official.
England will debut their new away jersey against Brazil at the Maracana Stadium on Sunday. Get in the Gear
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The hoop soccer jersey is classic and cool. The USA hooped jersey is perfect for every fan. Get in the Gear.
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Germany is one of the top teams ever and they will play the US on Sunday.