Benfica have set their price for Goncalo Guedes.
The exciting Portuguese attacking talent has been watched regularly this season by Manchester United.
Guedes is represented by super agent Jorge Mendes and Deportivo Plaza says he is also a target for Valencia.
Benfica president Luis Felipe Viera is demanding €30 million for the attacker, though Valencia are reluctant to go higher than €25 million.
With United and Atletico Madrid also in contact, Viera is willing to cash in, particularly with veteran Jonas now returning to full fitness.