It was heard, for instance, in the Mexico-Germany game in Moscow, and the team again received a fine of $10,000.
Osorio admitted he didn't know exactly how South Korea would be lining up tactically in Rostov, but said he had a plan A and plan B depending on how the Asian side approach the game. It's not breaking the equator, this tournament has already surpassed the Brazilian 2014 world Cup according to the number appointed 11-metre blows (14 vs 13).
Sweden are the final group-stage opponents for Mexico, with Osorio keen to remain focused on that test after celebrating another World Cup win. Chicharito bagged his 50th goal in worldwide play on a counter-attack led by breakout star Hirving Lozano - but Mexico was only able to score because referee Milorad Mazic allowed play to continue after Hector Herrera fouled Ki Sung-yueng to gain possession.
Toni Kroos' last-minute victor for Germany against Sweden later on Saturday means Mexico need a point against Sweden in their final group match to guarantee progress. "We just want to forget the criticism and the dark comments. We could have played a better game if those players were with us".More news: Dow Jones falls 287 points after Trump threatens Chinese tariffs
South Korea saw themselves the recipients of four yellow cards as various players hacked away at their Mexican opponents, resulting in an extended period of added time in which Son made efforts to bring his side back into the game with a lovely goal.
Mexico were looking to build on their famous victory over the defending champions Germany in the group opener and, after a slow start this weekend, Javier Hernandez headed wide from a free-kick by Hector Moreno.
The celebrations among the Mexican players after the game felt nearly subdued, nothing like the joyful catharsis after the team's victory over Germany.
"I believe that we have played very well", he said at his press conference.
Chicharito, who set up Hirving Lozano to score the victor in the opening game, says the hard work starts now for Mexico when they face Korea Republic and Sweden in their final two matches.
As the game kicked off Mexico fans sang "We are the home team" and with green shirts dotted all over the stadium and rousing chants of 'Ole!' bellowing around the arena every time their side passed the ball, it was hard to disagree.