Miazga moved to Stamford Bridge from New York Red Bulls in January 2016 but has appeared just twice for the Blues in all competitions.

The centre-back has previously had loan spells with Vitesse, Nantes and Reading, spending the past season and a half with the Championship club.

Miazga has two years left on his contract at Chelsea, having extended his initial deal – due to expire at the end of last season – when he left for Nantes in 2018.

Anderlecht sporting director Peter Verbeke said: "Matt can win duels but also has pace and technique, a combination that is hard to find and one we always look for in a central defender as we want to keep playing our own style of football."

The Belgian giant is unbeaten in the league this season but down in sixth under boss and former Manchester City captain Vincent Kompany.