Newcastle United are inquiring about the availability of Florentino Luis from Benfica.
The Magpies are still waiting to see how takeover talks continue in the coming weeks before making big transfer moves.
But the Daily Mail suggests that 20-year-old Luis is a key target for the Premier League club.
AC Milan also want to sign him. The Italian club wants a loan deal with a buy option for around £35 million.
Luis is a Portugal U20 international and plays in midfield.
Newcastle would hope that a permanent move this summer would entice Benfica to ignore Milan's interest.
Manchester United and Manchester City are also known to have some interest in the player.