Arsenal target Daniel Parejo has alerted the club after admitting he may leave Valencia.
Arsene Wenger is thought to be a long time admirer of the Real Madrid youth product, who has had few playing opportunities since moving to the Mestalla from Getafe in the summer, and a move to the Emirates Stadium is thought to appeal.
The 22-year-old had a loan spell with QPR when the Hoops were still in the Championship, but was recalled to Real after injuries to key players.
The midfielder has voiced his dismay at the lack of playing time he is getting at Valencia, sparking speculation of a January move to the Gunners.
“While I am privileged to be playing for Valencia, at 22 years of age I have got to play, either here or for another team,” Parejo told Spanish radio station Cadena Ser.
“If I were 35, I would be able to endure not playing, but at 22, I cannot.”
The Spain Under-21 regular was considered to be a highly promising talent by many across Europe, but he has been unable to realise this potential so far.
A move to play under Wenger, with his much-vaunted ability to develop young players, is considered to be a good option for Parejo.
Wenger is also looking for midfield recruits, with Jack Wilshere injured, Abou Diaby experiencing further fitness problems and Tomas Rosicky coming to the end of his contract at Arsenal.