<p><br /> Otto Rehhagel, at 71 the oldest coach at the World Cup in South Africa, is not ready to return home with Greece just yet.<br /> </p><p><br /> The German is determined to drive Greece to victory over Nigeria on Thursday and rekindle their hopes of progressing from Group B.<br /> </p><p><br /> A 2-0 defeat by South Korea in the first match continued the Euro 2004 winners' dismal World Cup record.<br /> </p><p><br /> Greece have lost all four games they have played in the finals. They have failed to score and have conceded 12 goals.<br /> </p><p><br /> Yet Rehhagel, who led the nation to unexpected glory at the European Championships six years ago, is convinced they can turn things around.<br /> </p><p><br /> "We still have an opportunity and can recover after losing the first game," said Rehhagel, whose side clinched a place among the elite with a dramatic play-off victory against Ukraine.<br /> </p><p><br /> "First of all we have to keep our mistakes to a minimum. We have to play to our full potential and give everything.<br /> </p><p><br /> "Of course we want to score goals. But I do not think we are that defensive. Perhaps if we had (Lionel) Messi, Kaka and (Cristiano) Ronaldo our style would be different."<br /> </p>
