Wigan boss Roberto Martinez has rejected Sunderland's bid for midfielder Lee Cattermole and insisted the player is not for sale.

"Lee is not for sale. End of story," he said.

"He is a fantastic player, a leader on and off the field, and is central to our plans going forwards.

"We are not interested in selling him, which was why this offer was rejected immediately.

"It is not usually our style to discuss incoming or outgoing transfers until they are completed but we have made an exception in this case because I feel so strongly about keeping Lee, along with all my best players.

"He is one of many talented players. Let's forget about this now and move on."