PREMIER - Liverpool interestd in the services Fabio Vieira
The Reds are reportedly tracking the teenager for his services, according to Record.
In the summer, the 21-year-old was named Player of the Tournament in the Euro U21 Championships, and his star is rising in Portugal.
Vieira's contract with Porto is due to expire at the end of the season, which means the Reds may strike a pre-contract agreement with the outstanding youngster in the January transfer window.
However, Porto and the player are now negotiating a new contract, which would increase his release clause from €30 million (£25.8 million) to over €50 million (£43 million).
If he does not sign that contract, Liverpool may be able to get a better offer in January.
Vieira already owns a league medal as Porto won the Primeira Liga in 2019/2020, and his national U21 side finished second in the European Championships just a few weeks ago.