Barcelona are eyeing Manchester United goalkeeper David De Gea. The Daily Mail says Barcelona will run the rule over De Gea at the Santiago Bernabeu tonight. The United goalkeeper has emerged as a possible successor to Victor Valdes, who could leave the Nou Camp in the summer.

De Gea's future at United at is under scrutiny after a number of high-profile errors since his arrival last season. But Ferguson, who is eyeing Stoke's Asmir Begovic as a possible replacement, has not given up hope of De Gea becoming a long-term success at the club.

There are fears De Gea's slim frame will continue to be an obstacle in his attempts to adapt to the physical nature of English football and the 22-year-old has been put on specifically tailored gym programme to help him bulk up.