Manchester United and Liverpool are the two Premier League sides chasing Goncalo Inacio.
The centre back is shining at Sporting CP in the Portuguese league, with the 22-year-old even linked to Real Madrid.
Per Portuguese newspaper Correio da Manh, United and Liverpool will have scouts watching Inacio at the weekend.
He is set to start for Sporting against Benfica in a must-win rivalry game in the league.
United are aiming to sign a new defender in the summer of 2024, with Raphael Varane's future in doubt.
Liverpool are also seeking a long-term Joel Matip replacement, while Real Madrid are always on the lookout for squad improvement.