Charly Musonda was seen as the future of Chelsea.

His signing – at the age of 15 – was seen as a huge coup; there had been interest from Barcelona, Manchester City and Real Madrid, and one of his coaches at Anderlecht said he could be one of the top five players in the world.

But since scoring on his full debut as a 20-year-old, he has made just six more appearances for Chelsea, and only played four