Both have expressed the wish that they could advance to the finals next year.
North Korean coach Kim Jong Hun spoke at a news conference in Seoul ahead of Wednesday's match.
"I heard it is a very crucial game for both teams to pass the preliminary stage. In my thoughts, I expect tomorrow's game to be intense since players are going to open up their own good phases in this game."
Huh Jung-moo is the South Korean coach .(www.hXen.com)
"Even though we are divided, we are the same race. I think it is a big source of pride and honor for each of us to receive seeds and enter the World Cup, South-North together, as one race. I think it is really great and, if possible, I hope we could move up together by putting forth our best efforts."
North Korea beat the United Arab Emirates 2-0 in Pyongyang over the weekend, putting the team at the top of Group B.
Having played a game more, North Korea has 10 points, South Korea has eight and Saudi Arabia is in third place with seven points in the five-team group.
Only the top two teams in both groups in the final full round of the Asian qualifiers will progress to the 2010 World Cup in South Africa.