The 21-year-old is one of the hottest prospects in world football and shone at the European Under-21 Championship in the summer.
Both Chelsea and Manchester City are said to have scouted the Portuguese playmaker, who scored seven times for Monaco last season.
But now, according to sources in France, Juventus have joined the hunt for Silva.
The Italian champions reportedly scouted the former Benfica man during Monaco’s match over Lyon at the weekend, which ended in a 1-1 draw.
Juventus are now weighing up whether to make a January move for Silva as they attempt to pip Chelsea and City to his signature.