In a potential blow for Iceland, winger Johann Berg Gudmundsson - who is central to the team's quick, counter-attacking style - is a doubt after tearing a muscle in the Argentina game.
Leicester City midfielder Wilfred Ndidi is confident the Super Eagles will bounce back when they tackle Iceland in their second World Cup fixture at the Volgograd Arena on Friday 22 June.
The Super Eagles face elimination after a 0-2 loss against Croatia in their opener, while Iceland were able to get a draw against Argentina. Also, Nigeria captain John Obi Mikel played in a more defensive role in midfield, his presence helping to shore up the defense against Iceland's two-man forward line.
Croatia: With two wins - over Nigeria and Argentina - they bagged six easy points to qualify for the round of 16 for the first time since 1998, when the Balkans had finished third in the tournament in France.
Musa's sweetly struck half-volley fired Nigeria into the lead just after half-time before he added a second with 15 minutes to go to make the Group D game safe. Musa deftly controlled the ball before slamming it past Iceland goalkeeper Hannes Halldorsson on the half-volley.
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As for Nigeria , a draw could do it for them, while a win locks them into the knockout stage. "They're not invincible. Switzerland came out with an impressive draw against Brazil and will look to keep the momentum going against Serbia.
Against the run of play, Iceland won a penalty but Gylfi Sigurdsson blew it in the 83rd minute.
In Iceland's 1-1 draw against Argentina, the team played with a lone striker.
Wilfred Ndidi forced Hannes Halldorsson into a fine fingertip save with a wickedly dipping shot from distance in the 58th minute.
Croatia top the group after 2-0 and 3-0 wins against Nigeria and Argentina respectively, but Hallgrimsson is undaunted.
"We know the importance of that meeting,"he said".