That's obvious wrote:
Don't keep calm and support Belgium wrote:
Dutch speakers speak better French than French speakers speak Dutch. But I find that the gap is reducing those 10-15 last years. French speakers with a university degree speak beter Dutch than before. Lower educated people are still as bad in Dutch as before though.
Lukaku is a native French and maybe Swahili speaker. But he went to a Flemish highschool that his formation team (Anderlecht) has a partnership with. Same for Kompany. Both are thus very fluent in Dutch. Not the case for Hazard since he played for a French team (Lille) when he was a teenager.
Why would Lukaku speak Swahili ? He's not east African, even in the country of his parent they don't speak this language...
A simple google search would have answered your question.
“In addition to his native French and Dutch, Lukaku can speak fluent English, Portuguese, Spanish and a Congolese Swahili dialect, and can also understand German.”
https://en.m.wikipedia.org/wiki/Romelu_Lukaku