Roy Keane on Manchester United v Manchester City

Manchester United legend Roy Keane tells BBC Sport's Colin Murray that Manchester City have made big strides under coach Roberto Mancini but they have a "long, long way to go" before they can be considered a great club.

City go into the Sunday's derby at Old Trafford top of the Premier League table and could go five points clear with a win. But Keane insists they need to win the Premier League title several times and lift the Champions League trophy before they can be put in United's class.

Hear more from Roy Keane here.

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