Wigan Athletic boss Roberto Martinez is confident Charles N'Zogbia will come good for Aston Villa.

The enigmatic France winger has yet to justify his £9.5million fee since a ­summer move from the DW Stadium.

But Martinez said: "Charles is enjoying the experience at Villa and his football will get better.

"He is a top, top player.

"But it takes time to settle, especially for a flair ­player.

"It's not like being a ­centre-half, where you can just slot into the team.

"He hasn't been himself, but I'm sure that Alex McLeish will find a solution and he'll be a top player for Aston Villa."