Now comes the real test for Mexico. Throw out the unbeaten group stage. Throw out the three clean sheets. Even with the heavy home field advantage at Estadio Azteca, Ecuador is a challenge that won't go away lightly.

Julian Quinones was beyond the last Ecuador defender. Despite that, the Mexican winger wasn't called offside. Half a field later, Quinones had tucked away the match's first goal for a 1-0 Mexico lead at home in Mexico City.