Roberto Mancini returns to Inter Milan as head coach

Mancini, who won three Scudetti and two Coppa Italia in a four-year spell at the Giuseppe Meazza, has replaced the former Napoli tactician after he was "relieved of his duties" on Friday.

Initial rumours about Mazzarri's fate were backed up by the Nerazzurri, who confirmed his departure in an official Tweet.

And the Serie A giants took to Twitter to announce the return of former Man City boss Mancini.

Mancini, who won five trophies in four years with the Nerazzurri but was sacked for the club's failure in Europe, expressed his delight at returning to Inter.

"A n exciting new challenge. I'm delighted to embrace the Inter fans again. See you tomorrow #forzainter," he wrote on Twitter.

Mancini was first appointed Inter boss in 2004, winning their first silverware in 15 years and going on to restore the club to Italy's top table with three Scudetti and three Coppa Italia.

He was fired by former president Massimo Moratti in 2008, with Jose Mourinho brought in to win them the Champions League, which he did before promptly leaving for Real Madrid.

In the meantime Mancini managed Manchester City and Galatasaray, winning silverware with both but leaving the Turkish club after just one season after disagreeing with the board about finances.

Since then Inter have fallen on hard times, finishing fifth last season. With new president Erick Thorir keen to re-establish the club as a domestic force, it is easy to see why he has looked to Mancini.