Argentina are in Group B alongside Greece, South Korea and Nigeria.
Gabriel Heinze says that by stopping Lionel Messi teams will not stop Argentina, insisting Diego Maradona's side are no one-man team.
Gabriel Heinze: "Everybody expects something whenever Lionel touches the ball, that's normal, he's the best in the world and is in his best moment, but Argentina do not depend on him but on the group.
"It's incredible what he does but he is one more player and he can make mistakes.
"I believe it's the team that makes you win these very difficult tournaments.
"Many of us know some of the Nigerian players after playing against them in France and England.
"The Nigerian players are very athletic and are powerful physically. They are talented people who are keen to make an impact in the World Cup.
"They are going to put you under pressure and have a direct and fast style of play. We are going to have to be ready.
"We are putting the emphasis on our play and plans, which are the most important things. We are feeling very good."