South Korea faces Czech, Mexico battles South Africa! Who will be the "upset maker" in the first round of the World Cup?

There are two types of people in the World Cup.
One watches the matches.
The other watches for surprises.
After all, a World Cup without upsets is like hotpot without tripe—something always feels missing.
This Friday, Group A's big matches officially kick off.
Mexico vs. South Africa.
South Korea vs. Czech.
Based on market expectations, Mexico and South Korea seem to have more support.
But seasoned fans all know.
The World Cup never plays fair.
Upsets by strong teams are a traditional feature.
Personally, I think Mexico has a better chance.
Experienced and with a mature lineup.
As long as they perform normally, they are likely to secure three points.
Predicted win probabilities:
Mexico 65%.
South Africa 35%.
While South Korea and Czech are evenly matched.
South Korea has the speed advantage.
Czech has the physical advantage.
This game is very likely to turn into a tug-of-war.
And there's even a possibility of ending in a draw.
Some fans say:
The first round of the World Cup is the most dangerous.
Because no one knows how strong they really are.
And no one knows how many secret weapons the opponent is hiding.
So, before the match, everyone is a prophet.
After the match, everyone becomes a philosopher.
One phrase, "Football is round," solves everything. #预测世界杯墨西哥VS南非