<p class="big">Villarreal star Diego Forlan has revealed that he turned down an audacious approach from Sunderland. </p> The ambitious Championship outfit have been revitalised this term under Roy Keane. </p> The Black Cats are locked in theChampionship promotion battle and Keane, backed by chairman Niall Quinn - is already looking towards next season, which they hope will be in the top-flight. </p> Forlan has now revealed that his ex-Manchester United team-mate Keane - offered him the chance of a return to England with a move to the Stadium of Light. </p> However, the Uruguayan striker decided to pen a new long-term deal at El Madrigal - but admitted a return to English shores is still an attractive option. </p> "I am a very good friend of Roy from my stay at United. For me, he is a star worldwide," he told The Mirror. </p> "Roy called me to explain his project at Sunderland and offered the chance to play there as one of the main reinforcements in the next campaign. </p> "I'm grateful but I'm happy here. But I may return one day. Nothing is impossible in football." </p>