Liverpool assistant first-team coach Pep Lijnders has suggested that Wolverhampton Wanderers midfielder Ruben Neves is on the Reds' radar.
Neves has enjoyed an impressive debut campaign in the English top flight by playing a key role in Wolves' challenge for a seventh-placed finish.
The Portugal international was linked with a move to Liverpool after helping Wolves to Premier League promotion, but he stayed at Molineux and appears to be settled in the West Midlands.
However, Lijnders, who worked with Neves as Porto's academy coach between 2007-14, has said that a player of the Portuguese's quality will always attract interest from top clubs.
"I know him very well, his ambition, his passion for the game, his professionalism... I know what he gives to the team and this type of players always interest us," he told O Jogo.
"I recognised him when I saw him at Wolves. I saw technique, professionalism; I saw the 2013/14 player I knew."
Liverpool have also been tipped to make a move for Wolves left-back Ruben Vinagre.