Luka Modric scored a goal from the penalty spot on Saturday as Croatia got their World Cup campaign to a flying start beating Nigeria's Super Eagles 2-0 in their Group D tie.

Croatia thus sit top of World Cup Group D after the comfortable win over Nigeria in Kaliningrad.

Zlatko Dalic's side took the lead in fortunate circumstances when Mario Mandzukic's 32nd-minute header from a Luka Modric corner was deflected into his own net by the unfortunate Oghenekaro Etebo.

Modric secured the win from the penalty spot 19 minutes from time after William Troost-Ekong needlessly fouled Mandzukic at a corner.

The Super Eagles are now in a precarious state and would have to beat Iceland to stand a good chance of progressing.