The agent of Porto star Luis Diaz says intensifying transfer interest is to be expected.

Liverpool are the latest to be linked with the Colombia international, who is also wanted by Newcastle United and Chelsea.

Agent Carlos Van Strahalen said on Radio Renascença: "If a player plays well, if he starts to stand out, if the majority considers him the best player in the Portuguese League, if he is the top scorer and is making a high-level Champions League, that interest is normal.

"Porto? I don't know, nor can I talk much at the moment, because I'm in a meeting.

"We'll talk later..."