In the opening round of fixtures, these two teams put on drastically different performances. Mexico were the surprise package as they beat Germany 1-0 and looked relatively comfortable in doing so.
South Korea, on the other hand, contributed to what was arguably the least exciting match. Sweden beat them by a single goal, converted from the penalty spot.
Before the tournament, Mexico would have been expected to beat South Korea and following the performances last week, El Tri should have even more expectation on their shoulders to get the job done.
The South Koreans have a task on their hands if they are to take something away from this match and leave themselves with a slim chance of qualifying.
Here are three things they need to do to cause an upset.