Following their scoreless draw against Iran last Thursday night, South Korea have to fight until the final day of Asian qualifying to try and book their ninth consecutive appearance at the World Cup.
It all rests on their match against Uzbekistan in Tashkent.
A victory means they can book their ticket to Russia, but anything else complicates the picture, especially with Uzbekistan and Syria sitting just two points behind South Korea in Group A.
Despite the pressure to avoid a tricky play-off or even complete elimination, South Korea's head coach Shin Tae-yong is confident the squad can do the nation proud.
"Since we are here to win, we are not thinking about anything but victory."
South Korea's offensive line-up is expected to led by players from the major European leagues, such as Tottenham Hotspur's Son Heung-min.
Son is confident he can perform well in Uzbekistan,… where he netted two goals in the Asian Cup quarterfinals in 2015.
"The important thing is to win when we enter the stadium. I will compete with a sense of responsibility, and try to help the team win."
Despite bringing in offensive-minded head coach Shin Tae-yong two months ago, South Korea suffered from their same old problems in their scoreless draw against Iran.
The offensive build-ups were predictable, passes weren't often sharp enough, and the shots on goal left a lot to be desired. =
The 34,000 seat Bunyodkor Stadium has already sold out for tonight's match.
It'll be tough as Uzbekistan, which has the home advantage, will be fired up to try and qualify for their first ever World Cup.
If Korea loses, the 'Taeguk worriers' cannot even be guaranteed a playoff place as Syria could win and drop South Korea to 4th in the group… so winning will be the only thing on the players… and the nation's mind.
The game kicks off at 8 p.m. Tuesday night in Uzbekistan or midnight, Korea time.
Won Jung-hwan, Arirang News.