Manchester United have been warned they will have to pay almost £30 million if they want to land Athletic Bilbao star Iker Muniain, according to the player's agent.

Muniain has been one of the stars for Bibao this season as they continue to impress, with the Basque side knocking Manchester United out of the Europa League on their way to a semi-final against Sporting Lisbon, while they have already secured their place in the Copa del Rey final against Barcelona next month.

The 19-year-old, who scored in the first leg at Old Trafford, reportedly caught Sir Alex Ferguson’s eye over the two games in the Europa League, and the Red Devils manager is said to be keen on bringing him to Old Trafford in the summer.

However United could face competition for his signature, with Juventus also said to be keeping a close eye on developments ahead of a potential summer bid.

Manchester United have been linked with a series of Bilbao players since the two teams met, with Oscar de Marcos, Javi Martinez and Ander Herrera all reportedly admired by the Old Trafford club.

However Muniain’s representative Jesus Medina revealed that if United want to land their target, they will have to pay a high price in order to meet the release clause in his contract.

'Athletic do not want to sell. Whoever wants him must pay his buyout clause at €36million (£29.5million),’ he told

United are likely to baulk at paying such a high price for an untested youngster, with more established targets on their radar likely to occupy their thoughts come the end of the season

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