Two calamitous errors cost Poland in Moscow as Mbaye Niang profited from a defensive disaster to grab the crucial goal in a 2-1 win for Senegal.

Both sides made tentative starts, trying to tempt the other into making errors with catalysts Robert Lewandowski and Sadio Mane largely ineffective for their respective sides.

Without defensive rock Kamil Glik, it was a makeshift pair and it wasn’t the smoothest of rides for Thiago Cionek.

As the first half seemed guaranteed to be goalless, an unfortunate deflection off Cionek carried Idrissa Gueye’s effort past Wojciech Szczesny.

As has been a theme of this World Cup, the higher ranked sides have failed to set the world a light, this was the case with Poland who looked nervous in their opening game.

In the second half, Poland became self-destructive as Grzegorz Krychowiak who’s nightmare season continued, gifted an opening to Senegal.

His attempt at a half volley pass back to Szczesny was far too short and Niang had the simplest task to beat the keeper to it and roll in the second for the Africans.

There was a late sting from Poland as Krychowiak slightly atoned for his error by connecting with a diving header, brilliantly guided into the far corner, to give hope in the dying minutes.

But it is Senegal and Japan who lead Group H and end the first round of games in this year’s World Cup, unpredictable or what?