Manchester United are monitoring Aston Villa defender Ezri Konsa as a potential replacement for Lisandro Martinez.
Martinez has been linked with a move to Atletico Madrid, who are prepared to pay €40 million for the Argentine defender.
His departure would represent a significant loss for Manchester United, given his established quality in central defence.
Konsa, 28, has been a consistent performer for Aston Villa in the Premier League and is regarded as a serious alternative target.
The England international is at the peak of his career, and a move to an elite club could prove difficult to resist.
However, Aston Villa are competing in the UEFA Champions League and are reluctant to part with key players.
The club has already allowed Youri Tielemans to join Manchester United, making the sale of another starter unlikely without a substantial offer.
United may be required to pay a premium to persuade the West Midlands club to negotiate.
Konsa is well settled in English football and could adapt quickly to Manchester United’s system if a transfer is completed.
Capable of playing both centre-back and right-back, his versatility would provide valuable tactical flexibility for the squad.