Oribe Peralta scored a second-half winner in a 1-0 victory over Cameroon in rain-lashed Natal on Friday in a match which once again raised questions over the standard of refereeing at the World Cup.
Miguel Herrera's Mexico side dominated throughout but went in for the half-time break feeling aggrieved after seeing what looked like two perfectly valid goals chalked off for offside.
Those decisions did little to appease a Mexican media which cried foul after seeing Group A opponents Brazil awarded a questionable penalty in a 3-1 win over Croatia on Thursday.
But against Cameroon, whose pre-World Cup was marred by a bitter row over bonuses, Mexico were a class apart.
Here are some highlights from the match: