Manchester United are ahead of Chelsea and Liverpool in the race for available Atletico Madrid attacker Saul Niguez.
Marca says United remains the most likely destination for the midfielder this summer.
However, both Chelsea and Liverpool have been in contact with Saul's agents over a potential summer move.
Following the arrival of Rodrigo de Paul from Udinese, Saul is likely to be surplus to requirements this summer, and a fee of €50m, according to the report, could be enough to secure his services.
Saul has been also been linked with a swap involving Barcelona striker Antoine Griezmann.
