AC Milan goalkeeper Gianluigi Donnarumma 'offered to Real Madrid' as an alternative to David de Gea

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AC Milan goalkeeper Gianluigi Donnarumma has emerged as a potential alternative if Real Madrid do not sign Manchester United's David de Gea.

Spanish newspaper Marca have reported how Donnarumma has been offered to Real by agent Mino Raiola, at a time when the Spanish club look set to address their goalkeeping situation.

De Gea has long been the front-runner to replace Keylor Navas as the club's first choice keeper, with a deal previously breaking down in 2015, and Red Devils boss Jose Mourinho now said to be open to allowing the Spaniard to leave. 

AC Milan's teenage sensation Gianluigi Donnarumma has been offered to Real Madrid

Manchester United goalkeeper David de Gea remains a long-time target of Real Madrid

But if a deal is not done for De Gea, Madrid could opt for teenage prodigy Donnarumma, who has impressed since breaking into the Milan first team.

Gazzetta dello Sport have reported how the young Italian has rejected three offers to extend his contract beyond its current 2018 expiration, opening the door for him to join one of Europe's leading clubs.

United are another to have shown an interest, with the 18-year-old on a list of potential targets should De Gea depart.

Also on that list is Manchester City's Joe Hart and Samir Handanovic of Inter Milan. 

In total, Donnarumma has made 72 club appearances as a professional, all for Milan, and has been capped three times by his country. 

Donnarumma, pictured during a training session while on international with Italy