I think South Africa would have to win 4-0 in order to top Mexico with the goal differential (if Mexico loses 1-0) ....
If South Africa wins 3-0 and Mexico loses 2-0 then they (S.A.) would advance.
The scores are 2-0 and 1-0 respectively now.
If South Africa wins 3-0 and Mexico loses 2-0 then they (S.A.) would advance.
The scores are 2-0 and 1-0 respectively now.