The Blue Samurai have lost four and drawn one of their five warm-up matches and scored just one goal. Le Guen, however, is refusing to take their opponents lightly and said: "These results are not very important to me. I have watched all Japan's games and they are a good team. I know we are facing a tough match." Le Guen has become tired of questions regarding team captain Samuel Eto'o's mindset in the build up to the tournament. Eto'o recently threatened to quit the team following critical remarks by former player Roger Milla. However, the Inter Milan striker, who helped his club win the Champions League, changed his mind and will lead the team out. Le Guen said: "We have to concentrate on the special things, not the minor things. He (Eto'o) knows what works for him as well as the Cameroon team. He is a champion and knows how to concentrate on the things that matter." Japan coach Takeshi Okada is fully aware of the threat Eto'o poses but added: "I do not think he is perfect. He is not the only one to focus on as Cameroon have many talented attacking players. "But my team have the information they need on Eto'o and we might require more than one man to cover him at times." Japan arrived on Saturday in Bloemfontein, 1400 metres above sea level, from George after deciding not to train at altitude in South Africa. Okada insists their 10-day pre-tournament training camp in Switzerland was sufficient.