Senegal, back in the tournament for the first time since 2002, went ahead in the 37th minute when Thiago Cionek's attempted block of Idrissa Gueye's shot wrong-footed goalkeeper Wojciech Szczesny, who was picked to start over fellow Arsenal castoff Lukasz Fabianski.
Senegal are the only one of the five African sides in the World Cup to avoid defeat in their opening game.
The goal made a huge difference in the match, as Poland later scored on a header to bring it to 2-1.
"We all know Poland have some very good individual qualities but also some defensive weaknesses", he said.
Fragility in the face of tightly drilled European sides has in the past been seen as a factor in holding back African teams, only two of which have matched Senegal's feat of reaching the quarter-finals in 2002.
The Teranga Lions were unfancied in the Group H encounter at Otkritie Arena but the cruised into the lead after Thiago Cionek put the ball into his own net.
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The clash between them will take place on June 24 and you can expect the stadium to be very tidy after. Referee Nawaf Shukralla of Bahrain, a veteran of two World Cup matches in 2014, waved Niang to come back on the field just as Krychowiak lofted a backpass from the centre circle to Szczesny. Senegal are making a return to the World Cup after a gap of 16 years. We have had to wait a few days for the eighth segment to get underway, but Tuesday's encounter only served to heighten the sense that this is the most intriguing group of the World Cup.
Japan upset 10-man Colombia 2-1 in a dramatic match on Tuesday to become the first Asian side beat South American opponents at the World Cup.
Japan's Yuya Osako got the all-important victor in the second half with 17 minutes remaining on the watch, but the South American could not come back as they did in the first half.
Despite putting in a limp and leaden performance himself, Lewandowski seemed to point the finger at his teammates for their errors, which ultimately cost Poland the game.
If Poland doesn't advance out of the group and Senegal does, the confusing play may turn out to be a critical moment in this World Cup.
Speaking of Niang, he's now had one shot at a World Cup and used it to score his first ever worldwide goal.