Lamine Kone has revealed that he wants to leave Sunderland because of the club supposedly reneging on a promise to offer the Ivory Coast international a new contract.

The 27-year-old, a reported target for Everton, joined the Black Cats from French club Lorient in January and helped Sam Allardyce's side avoid relegation last season.

Kone told Sky Sports News: "At the end of last season I was told by the club that I would be offered a new contract. Following numerous phone conversation and face-to-face meetings, the latest of which took place today with David Moyes and Martin Bain, no contract has been forthcoming.

"It is therefore with much regret that I can only assume that I do not figure in David Moyes's future plans. With that being the case it is with much sadness that I have asked the manager and the chief executive to be allowed to leave Sunderland Football Club.

"However, until that time I give my word that I will give my utmost in training and on the field."

Sunderland begin the Premier League season away to Manchester City on Saturday.