Di Matteo wants league improvement

Roberto Di Matteo says he wants to rival Manchester United and Manchester City in the Premier League next season after being named Chelsea's permanent manager on a two-year contract.

The Italian won the Champions League and FA Cup in 2011-12 as interim coach, but insists such achievements are now "history".

The appointment caps a big turnaround for Di Matteo, who left West Brom in February 2011 after a run of 13 defeats in 18 games.

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