"We have to win, because if we win the next game we will be one step away from qualifying".
"I first of all thank the fans for voting for me, but it's not the result that we wanted".
After the game's second review, the goal and three points for Chile were confirmed. His goal in the 91st minute was also referred to the video assistant referees - presumably to check on another possible offside - but it stood.
"If this is going to happen several times during a game, well it's not very pleasant for the players", Cameroon coach Hugo Broos said.
"We are calm and we have to think about the next game".
Osorio said: "We played the European champions on equal terms, we generated chances but couldn't finish them".
"Those are the rules and if they benefit football, great", Santos said in the news conference afterwards.
The second half had little action until the final 10 minutes when, after goalkeeper Ochoa brilliantly saved Andre Silva's header, Soares' lung-bursting run into the penalty area saw him score with a huge deflection off Hector Herrera.
"It is a little hard for the players", Chile coach Juan Antonio Pizzi said.
The referee held up the game for the assistant to check the replay, before the goal was cancelled 40 seconds later, as Pepe had been adjudged to be offside.
Mexico's all-time leading scorer still had time before the end of the half to blaze over from a good position.
However, into added time and it was a former club teammate of the Saints right-back who turned things sour for Cristiano Ronaldo & Co.
Chile's star player Arturo Vidal fiercely argued with referee Damir Skomina when a goal scored in first-half stoppage time by Eduardo Vargas was overruled nearly one minute later.