Roberto Mancini was confirmed as Inter Milan's new coach on Friday just hours after the struggling Serie A giants sacked Walter Mazzarri.
A statement on the club's website, www.inter.it, quoted club president Erick Thohir as saying: "Happy to welcome back Roberto Mancini. Together we'll make Inter one of the very top clubs in Europe again."
Mancini returns to the San Siro following a six-year absence, having won three straight Serie A titles during his previous spell from 2004-2008.
Thohir added: "Today I made the difficult decision to suspend Walter Mazzarri as head coach.
"It was a difficult decision because he has been continuously supportive of the direction that we have wanted to take the club, and he has worked tirelessly and selflessly for Inter, with both belief and passion.