Robert Lewandowski scored his first World Cup goal on Saturday as Poland beat Saudi Arabia 2-0 in their Group C encounter.
The Barcelona attacker struck in the 82nd minute to secure victory for Poland, who moved to the top of the group by four points.
Piotr Zielinski had opened the scoring for Poland late in the first half and received an inspired cut from Lewandowski.
Saudi Arabia had started the match energetically, but missed the chance for a draw when Polish goalkeeper Wojciech Szczesny dismissed Salem Aldawsari from the penalty spot.
The result leaves Group C wide open for Saturday night’s game, when Argentina take on Mexico.
With two games played, Poland tops Group C with four points, while Saudi Arabia falls to second place with three points.