Nigeria coach Stephen Keshi celebrated a happy night for west Africa after his side beat Bosnia-Herzegovina on Saturday night and Ghana held Germany earlier on in the day.
Ghana drew 2-2 with Joachim Low's side in a thrilling encounter in Fortaleza and Nigeria went one better with a deserved 1-0 win over Bosnia in Cuiaba later on.
"Everybody is happy in west Africa," Keshi told reporters after Nigeria's narrow victory. "Ghana got their result and we won as well. It’s good for the continent."
The 52-year-old also hailed his side's performance as they kept a second clean sheet in the competition and triumphed thanks to Peter Odemwingie's first-half goal and looked ahead to his team's final group game against Argentina.
"The fighting spirit we showed was good," he said. "I never thought that we wouldn’t make the round of 16. I have the players. But look at Iran today, if it was not for Lionel Messi [Argentina wouldn't have won]... We need to work hard for the game against Argentina."
For his part, goalscorer Odemwingie was thrilled with his match-winning strike and applauded the character shown by his team-mates.
"The goal means a lot to me," he said. "But the win was down to 90 minutes of concentration and effort from my team-mates. The most important thing today was the character. We even enjoyed defending together."
And he added: "I don’t know anyone who doesn’t love this country. Playing for my fatherland is an honour and a pleasure. I didn’t expect to come back and score a winner in such an important game, but I’m very happy. Right now I’m so high on our team’s performance."