The South Korea national football team has been focusing on Japan's recent World Cup performance. Park Ji-sung highly praised Japan's performance, saying 'Japan has proven why they can achieve good results in the World Cup.' Japan recently defeated Tunisia 4-0, making history as the first Asian country to score more than 4 goals in a single World Cup match. Park Ji-sung commented, 'Japan was very comfortable. They clearly showed what they had to do and each player's role, and they performed well.' The South Korea national football team seems to still lack the skills compared to Japan. Park Ji-sung said, 'Korea is very unstable, with a lot of ups and downs.' Japan has many players in Europe and has been continuously improving, which is impressive. Park Ji-sung also mentioned that Japan's coach, Moriyasu Hajime, has been giving players opportunities to play and compete, which has helped the team maintain good performance despite injuries.