Manchester City boss Roberto Mancini claims Chelsea remain serious title rivals.
The Barclays Premier League leaders travel to Stamford Bridge to face Andre Villas-Boas' side on Monday. The Londoners dropped out of the top four over the weekend, but they have emerged from a difficult spell over the past week, winning at Newcastle before beating Valencia to reach the last 16 of the Champions League.
Those results have eased any pressure on Villas-Boas and, while they remain 10 points behind City, Mancini feels Chelsea should know from their own experience that large deficits can be overhauled. Mancini said: "Last year Chelsea had a big lead over (Manchester) United but in the end United won the title by seven or eight points plus [nine]."
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