Real Madrid have agreed to sign River Plate's young forward Franco Mastantuono for an initial fee of about $45 million, a spokesman for the Argentine club told Reuters on Thursday.

Real Madrid are close to completing the signing of River Plate star Franco Mastantuono, sources have told ESPN, with the playmaker expected to arrive in August, after playing for River at the Club World Cup.

Real Madrid has taken another step in its commitment to young talent with the signing of Franco Mastantuono, one of the biggest promises in South American football. According to sources close to River Plate, the agreement between both entities is already closed, and the transfer will be finalized for a sum close to 40 million euros.