"When I see the matches are so hard then we have to learn also it is not finished after this World Cup for us". The formation change allowed Nigeria to pack the middle of the pitch, forcing Iceland to go wide and negating the influence of Sigurdsson. With a win over Nigeria, Iceland would nearly assuredly advance to the knockout stage.
Gernot Rohr's charges were still under siege after 35 minutes, struggling to combine their play going forward.
Nigeria almost doubled its lead on several occasions, but Musa made it happen in the 75th minute.
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But Nigeria were slow to get out of the blocks and became the first team not to have a shot in the first half of a World Cup game since South Korea against Algeria in Brazil four years ago. "People can have their opinion about it but we really don't care", said goalkeeper Hannes Halldorsson.
Iceland missed a chance to pull one back in the 82nd when Gylfi Sigurdsson sent a penalty kick soaring over the bar. "This is a must-win game for Nigeria and that makes it a little bit psychologically different, they have to win".
After the game, Musa was hailed for handing his team a win and Argentina a lifeline - and was feted for doing more for the Argentinian World Cup cause than the misfiring Messi.
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Also supporting prices was a drop in Libyan supplies due to the collapse of an estimated 400,000-barrel storage tank. Mr Trump has also increased pressure on OPEC to raise production ahead of mid-term elections.
Coach Gernot Rohr's Super Eagles - who brought the youngest squad to Russian Federation, with an average age of around 25 years of age - have now won just one of their past 13 games at World Cups. And interesting that he is a guy who, while on the books at Leicester City, played at CSKA Moscow for a few years and then went back on loan.
Iceland coach Heimir Hallgrimsson changed to a 4-4-2, from the 4-5-1 he used against Argentina, bringing in Jon Bodvarsson up front to partner Finnbogason.
And captain Aron Gunnarsson said it was the team's togetherness and spirit that enabled them to keep punching above their weight on the world stage, having famously knocked England out of Euro 2016. Rohr also played midfielder Victor Moses more defensively, too. With the "Fubo Premier" bundle, you will get access to all four of the World Cup soccer TV channels in most markets. But should Iceland fail to beat group leaders Croatia in their final match, a draw or better for Nigeria will be enough for them to progress.
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On Wednesday afternoon, congressional Democrats gathered on the Capitol steps to protest the practice of child separation. U.S. immigration officials say 2,342 children have been separated from 2,206 parents from 5 May to 9 June.