Nigeria is posted at +430 (risk $100 to win $430), while a draw is 250.
Here, portraits of all 23 players on the 2018 World Cup squad.
"As a team, we have done all that is needed, training and getting fit". Croatia have had the better of their World Cup outing, having made the semi-finals before while the Africans are always a very strong side physically but don't have too many results to speak of. He's revealing his picks for the world's biggest sporting event exclusively at SportsLine.
The Nigerian fans told Ermak chickens were the team's symbol. The team failed to emerge from the group stage in 2002 and 2010.
Nigeria was among the teams that jetted into Russian Federation on Monday night, but it wasn't their arrival that fascinated fans but how they arrived.
Croatia have taken a talented squad to the finals in Russian Federation and are expected to include star players Luka Modric, Ivan Rakitic, Ivan Perisic and Mario Mandzukic in the starting XI to face Nigeria.
But Modric said: 'I know he is our new coach at Real Madrid, but I am only thinking about my national team now.
The Super Eagles started with jersey number 4 in their opening game only once: Nwankwo Kanu, Nigeria vs. Argentina (2002).
The 31-year old had time for some wisecracks when asked which teams are the favourites for the World Cup.
Last year Mikel, who plays for for Chinese club Tianjin TEDA in the Chinese Super League, told the official Federation Internationale de Football Association website: "My wife is Russian and many of our relatives and friends are from Russia".
"And don't forget Wilfred Ndidi‚ the midfielder from Leicester City".
So which side is Rongen siding with?