Manchester United have sent scouts to monitor three Portugal stars when they face Belgium in a friendly on Tuesday, according to reports from the Mirror.
Andre Gomes, Bernardo Silva, and Renato Sanches are heavily linked with a move to Old Trafford, with the young trio all clients of super agent Jorge Mendes.
Mendes represents some of the biggest names in world football such as David de Gea, Cristiano Ronaldo, and Angel di Maria, and has a particularly good relationship with the Red Devils.
It has even been revealed that United submitted a massive £31million bid for Sanches back in the January transfer window, while Silva and Gomes are players believed to have the necessary quality to add to their under par midfield.
The friendly was supposed to take place in Belgium, but after the terrorist attack on Brussels last week, the game will be played in Portugal instead.
Man United face Everton in their next league game this weekend as they attempt to catch Manchester City, who are just one point ahead, in fourth place.