Manchester United had scouts in the stands for Porto's victory over Famalicao yesterday.

O Jogo says scouts from United, Atletico Madrid, Real Sociedad and Sassuolo were in attendance as Porto won 3-1.

While the targets were not disclosed, several players from Porto have been linked with moves away this month.

Colombia star Luis Diaz scored for Porto on the day, with Brazilian midfielder Otavio, who is close to United fullback Alex Telles, also featuring.