The 15-year-old was also a target for Manchester City and Arsenal, but his family have decided there will be better opportunities for him at Stamford Bridge.
As part of the deal, the Blues have signed his older brothers Tika, 18, and Belgium Under-21 international Lamisha, 20.
Charly Musonda Jr is son of former Zambian midfieder supremo Charles Musonda.
Anderlecht’s general manager Herman Van Holsbeeck confirmed terms for the Musonda brothers’ move had been negotiated and that Chelsea have agreed to pay ‘substantial financial compensation’.
‘I wish to thank the management of Chelsea for their correct and generous attitude in this matter,’ he said.
‘We regret the departure of the Musonda brothers, but the financial effort proposed by the London club is a sign of great respect to Anderlecht.’
The Blues have already brought in Eden Hazard in a £32million transfer from Lille to supplement their Belgian contingent.
Last summer, they signed striker Romelu Lukaku from Anderlecht and goalkeeper Thibaut Courtois from Racing Genk, while
Read more: http://www.metro.co.uk/sport/901541-chelsea-agree-transfer-of-charly-musonda-and-brothers-tika-and-lamisha#ixzz1xOKd136R