The 21-year-old only arrived at the Estadio da Luz from Almeria over the summer but has made a strong impression for the Portuguese club, scoring five times and contributing six assists in 11 appearances.
However, according to A Bola, Barca and Madrid are now tracking the striker ahead of potential approaches.
The report claims that Inter Milan are also admirers, suggesting that Benfica face an uphill task to keep hold of the South American despite the fact that he has been with the club for less than three months.
Nunez has a contract with the Eagles until the end of the 2024-25 campaign. body check tags ::