Manchester United manager Louis van Gaal has given the clearest indication yet that they face the prospect of losing goalkeeper David De Gea to Real Madrid.

De Gea went off with a hamstring injury during Sunday's 1-1 draw with Arsenal at Old Trafford, which makes him a doubt for United's last match of the season at Hull City next weekend - and means he may have played his final game for the club.

Real have earmarked the 24-year-old Spain international as the successor to veteran keeper Iker Casillas, and Van Gaal says he is sure to be tempted by the possibility rejoining his family and girlfriend in his homeland.

The Dutchman said he did not know if Real had made an offer, but added: "It is not easy to choose between two great clubs. We would be very happy if he stays.

The United boss insisted he would not be doing any more to persuade De Gea, who has one more season left on his contract.