Manchester United are at the head of the queue to sign Villarreal youngster Adrian Corral.

The centre-back is only 16 years old. But he is now free to sign for a foreign club.

He can also play at left back and is being touted as one of the top prospects in his age group.

Corral would join up with United's youth team, per Super Deporte.

Liverpool also have an interest in the player.