The top two teams in Group D face off in the big match of the morning. Portugal has clinched a second round spot, but Mexico needs at least a tie to move on after they played a scoreless tie against Angola. If Mexico loses, expect to hear a lot of complaining from the Mexican press and fans who are sort of like Red Sox fans pre-2004.
Angola has yet to score a goal in the World Cup, but the Black Antelopes have given up just one. Iran scored a goal against Mexico, but otherwise haven't shown any propensity to do much of anything. And the Iranian Parliament is starting to ask for an investigation into the team.
If Mexico were to lose, Angola would need to make up the goal difference on Mexico. Mexico is +2 right now and Angola is -1. If Mexico lost and Angola won, they would have to change to at least +1 and 0. And since the total goals are also in Mexico's favor (3 to 0 now), Angola is going to need something like a 3-0 win over Iran to move on. Probably won't happen.