Jude Bellingham was reportedly "impressed by what he saw" after visiting Manchester United's training ground alongside his parents earlier this week.
According to Sky Sports News, the teenager is yet to agree a deal with any club, but he was "impressed" by his visit to Carrington, which also included a meet with Sir Alex Ferguson.
Bellingham will not turn 17 until June but has been a regular for the Blues this season, contributing four goals and three assists in 32 Championship appearances.
The England Under-17 international, who could allegedly earn his Championship club as much as £50m this summer, has a contract at St Andrew's until June 2021.
Liverpool and Chelsea are also believed to be closely monitoring developments.