Sunderland are interested in bringing Honduran striker Iverson Sacaza, according to reports.
According to Diez, the Black Cats and Belgian side Anderlect have been keeping a close eye on his development.
The 17-year-old recently trained with La Liga side Valencia, where one official at the club compared him to Romelu Lukaku.
Sacaza is currently based in Spain at the Getafe Soccer School - a Real Madrid partner - and has been attracting plenty of interest.
The youngsters agent, Juan Pablo, told Diez: "At the moment we have nothing concrete with the people of Life, we have not had anything formal from them, we will see how it evolves, but there is nothing."
