Aston Villa boss Alex McLeish has urged £9m signing Charles N'Zogbia to start producing the form he showed for former club Wigan on a consistent basis. But the Scot insists N'Zogbia is not unique in taking time to settle at a new club.

McLeish said: "I've been up there many times playing Wigan in the past with my team before and Charles was one of the differences.

"At the end of last season for Wigan, I thought he was the guy that made the difference.

"If he can bring that form to us on a really consistent level, then Charles is going to make a name (for himself) at Aston Villa."

McLeish added: "Charles has been slow to settle but you only have to look at other examples up and down the country.

"Why has Andy Carroll been slow to settle at Liverpool. Why has Stewart Downing been slow to settle there? You are talking about two great players.

"It is just one of the mysteries of football. You tend to think when you get an English player, or a player who has been playing in England, that they will hit the ground running.

"But sometimes they need time to settle in so I don't think it is unique to Charles.

"Charles has shown us some great moments and hopefully there will be a few more from now until the end of the season."

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