Mario Balotelli insisted he was not a "bad boy" as he was unveiled by Manchester City on Tuesday.

The fiery 20-year-old striker has moved to big-spending City from Inter Milan, although he arrives with a reputation as a hot-head.

There is no doubting the quality of the Italy international, but Balotelli had a number of run-ins with team-mates, fans and his manager while at Inter Milan.

Former boss Jose Mourinho excluded him from the first-team squad at one point, while after a Champions League game he caused outrage in the San Siro when he threw his Inter shirt onto the ground in disgust.

However, the forward denies that he will cause trouble at City, claiming he is a "normal guy".

He said: "I am not a bad boy. I am just a normal guy."

City boss Roberto Mancini was the man who signed Balotelli when he was manager of Inter and he has opted to go for him again in a bid to bolster his attacking options for the new campaign.

Mancini also calmed talk that the youngster would rock the boat, and believes he will be a valuable asset for the club going forward.

"All of us are said to be bad boys when we are young," he remarked.

"But I have worked with Mario before and he is a normal person.

"He is young player, only 20 years old, who can do a lot in the Premier League. He has all the qualities needed to become a fantastic player."

Balotelli penned a five-year contract with City last week after a long transfer saga, and could make his debut in the Europa League against Timisoara.

It was first thought that he had arrived at Eastlands too late to be included in the club's European squad, but UEFA have confirmed he will be able to play if selected.

Balotelli is looking forward to getting his City career underway and believes his style of play will be suited to the Premier League.

He added: "I am happy to be here at Manchester City because of the manager and the environment.

"I was sorry to leave my family and friends behind in Italy but not for professional reasons.

"I think I will fit in the Premier League because I think for a striker it is probably the ideal league in comparison to Italy for example where it is quite tactical.

"I believe that I will fit in the Premier League quite well."