Manchester City boss Roberto Mancini says he won't walk out on his job.

Mancini all but conceded the title to Manchester United yesterday after defeat to Southampton.

Asked whether he thought his job would be in jeopardy without any trophies this season, Mancini replied: "I will resolve this problem, don't worry.

"But the year after you win the title you need to improve.

"We need to work hard in the last 12 games and see where we are.

"We can't think we're the best team in the world because we won the league last year, because that's not the case."