Everton and West Ham United are reportedly among the clubs interested in signing Porto winger Jesus Corona when the transfer window reopens.
The 27-year-old has chalked up 17 assists across all competitions this season, in addition to scoring two goals of his own in 41 outings.
Portuguese outlet A Bola reports that such form has attracted the attention of a number of clubs around Europe, including Premier League duo Everton and West Ham.
However, the report states that Porto are reluctant to lose Corona and will demand his full €50m (£43.6m) release clause.
Corona's contract at the Portuguese outfit does not expire until 2022, having only signed an extension last year.