"We have to do our duty and win the game, preferably not by just 1-0 but higher".
A potentially big problem is developing in the centre of Germany's defence after Jerome Boateng's red card in Saturday's 2-1 win over Sweden meant he would miss the South Korea match, with regular partner Mats Hummels already sidelined.
Never write off the Germans.
Their win over the Swedes has been tarnished somewhat by the unsavoury touchline scenes that marred their celebrations after Kroos' goal. It's also worth noting that they have lost their last two World Cup games against Germany, a group game in 1994 and the semi-final in 2002. It is about using all possibilities.
In truth it was harsh that he was dropped against Sweden when there were players who had worse games than him in the shock loss to Mexico.
Toni Kroos said his last-gasp victor to seal a dramatic 2-1 win for Germany over Sweden that kept the holders' World Cup dreams alive made amends for his earlier mistake.
Germany will brace themselves for a tough fight as they meet South Korea in their final group game.
Regardless of his first XI, Low warned that Germany must avoid running into counters against South Korea.
The South Koreans, after two defeats, would have to beat Germany by more than two goals while hoping Sweden lose to Mexico to have any chance of advancing.
Germany were resilient in their come-from-behind victory against Sweden, showing the spirit of a champion side - but not the quality of one.
They have won all five of their World Cup games against Asian opponents, scoring 19 goals in total and keeping clean sheets in each of their last three matches. The late heroics of Germany's Toni Kroos against Sweden spared Shin's side the ignominy of elimination with a game to spare, but only a win on Wednesday afternoon and a victory for Mexico against Sweden gives them any chance of progress.
They have won 15 of their last 17 competitive matches (D1, L1) since losing to France at Euro 2016.
After missing out in the last World Cup as well as the European Championships due to injuries, the Borussia Dortmund superstar is relishing the chance of playing in his first major global tournament.
However, South Korea's mammoth task of overcoming Germany will be made much hard by the news that key midfield Ki Sung-Yueng is sidelined with a calf injury, which will keep him out for two weeks.