According to MARCA, his form this season has brought interest from a number of clubs around Europe, including Pep Guardiola’s Manchester City, as well as the three Italian sides.
Borussia Dortmund are also considering making a move for the winger, as are soon-to-be Spanish champions Real Madrid.
Ferran has made 42 appearances across all competitions this season, scoring six times and assisting a further seven goals.
Thirty-two of those games have come in LaLiga, with six more being in the Champions League.
The 20-year-old scored Valencia’s third in their loss to Atalanta at Mestalla.