Greece soccer team
Sweden's World Cup hopes dented by Greece loss
Sweden, after three previous victories, could only manage a consolation strike in the 80th minute through Robin Quaison.
The win left Belgium with 22 points from eight games at the top of Group H, eight clear of Bosnia who won 4-0 away to Gibraltar.
It's the Greeks who lead at the interval thanks to substitute Andreas Samaris's first international goal.
The Elephants take on Greece in their final Group C clash of the 2014 Fifa World Cup.
Greece upset Russia 1-0 with a first-half goal from captain Giorgos Karagounis on Saturday.