Belgian FA vice-president Philippe Collin believes new Chelsea signing Eden Hazard needs to improve his game.
The Belgian official thinks, despite Hazard's impressive start to his career at Stamford Bridge, that the winger needs to up his all-round game for both club and country.
Collin has been credited with the implementing of improvements to the Belgian youth set-up, which has produced the likes of Romelu Lukaku, Vertonghen and Hazard in recent years.
"He has technique, explosiveness and positioning. At some point he will have to work on defending, and he has no choice with that. But I have confidence that [Belgium manager] Marc Wilmots will occasionally give him a kick up his ass," Collin told Nieuwsblad.
"The learning process is slow but good. If Messi should work for the team and defend, then I see no reason why Hazard should not do likewise."
Collin was speaking ahead of his nation's upcoming World Cup qualifiers against Wales and Croatia.