The moment of truth has arrived for defending champions Brazil as they face first round elimination if they lose their second Group D match of the FIFA U-17 World Championship Peru 2005 on Tuesday.
The Netherlands know that victory in that game could help secure their progress to the quarter-finals, so all is at stake in the at the Miguel Grau Stadium. Brazil's conquerors Gambia are also seeking to claim their second win against Qatar in their bid to book a place in the knock-out phase.
He said: "That was what I was expecting, but it is always very tough with first matches. You have to be very careful trying to go through the group stage, but after winning the opening game you can start to look ahead a little.
"However, I take every single opponent very seriously. Winning once does not automatically mean you will win all the time. We're working very hard so we can also try to beat Qatar, but I never underrate any team."
Ebrima Sohna and Saja Leigh will be suspended for the Qatar clash following their red cards against Brazil, but Duodu said: "It is difficult, but I know what to do. We have 20 players with us here so we have replacements for those positions.
"I saw Qatar play Holland and we must prepare for each team according to their strengths. To be at the FIFA U-17 World Championship must mean that they are worth their salt."
Qatar coach Tini Ruijs feels his players have grown in stature and belief after the opening game, though two of his defenders admitted they had a sleepless night before the Netherlands encounter and that may account for some of the five goals they conceded.
Midfielders Mohammed al Yazidi and Faisal al Shuaibi were also among those who Ruijs felt allowed nerves to get the better of themselves and he expects far more from that duo next time around.
"This U-17 World Championship is a fantastic experience for my players. Normally we play in front of 500 people and to have a big crowd like that in Piura was so special. The atmosphere was great," said Ruijs. "We lost, but we enjoyed the occasion. We collapsed a little bit because of pressure, but we improved a lot in the second half.
"Gambia have excellent, skilful players, especially the striker Momodou Ceesay and the number 14 Sainey Nyassi, so this will be a very hard game for us."
Netherlands v Brazil (18:15 local time)
Brazil coach Nelson Rodrigues has had to pick up the spirits of his youngsters following the confidence-sapping defeat against Gambia, but he feels his troops are in a better frame of mind to take on the Netherlands now.
"Of course they were upset after Saturday, but we had a good talk and now they are happy again. This is the game of their lives, so they have to be ready," Rodrigues said.
He will be without Marcelo and Celso as they are suspended after being sent off on Saturday, with Vinicius expected to come in for Marcelo as the only difference from the team that started against Gambia.
"We will not change the way we play against Holland because all the games are going to be as hard as each other," the Brazilian boss added.
Dutch coach Ruud Kaiser is considering defensive switches following the 5:3 victory over Qatar, though striker Diego Biseswar is the only slight injury concern. He picked up a knock during a scramble for the fourth Dutch goal on Saturday, but his foot is expected to heal in time.
Kaiser said: "I've been thinking about changes for Tuesday, but I'm not sure exactly what yet. I have studied a tape of the game and the goals we conceded we are all down to personal mistakes, nothing to do with our tactics.
"I won't alter my plans because Brazil lost their first game. We will both be out to win and there's no suggestion I am planning to get a draw - in football that's not possible anyway. Brazil were a little bit unlucky with some parts of the game against Gambia. They can do much better… and they will probably do it against us."